The correct sequence of flow of electrons in the light reaction is

-Photosynthesis is the process by which carbohydrates are synthesized from inorganic materials like CO2 and H2O with the help of light energy which is trapped by pigments like chlorophyll.
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-Oxygen is produced as a by-product of photosynthesis. It is used up by other organisms like humans for essential metabolic activities.
-Photosynthesis takes place in the chloroplast of the leaves. The chloroplast contains pigments called chlorophyll which absorb the light energy needed for photosynthesis.

• The process of photosynthesis involves two stages:
-Light-dependent reaction or Light reaction: ATP and NADPH2 are formed at the end of the light reaction which then enters the next stage of photosynthesis (dark reaction).
-Light-independent reaction or Dark reaction: It is a carbon-fixing stage, where CO2 from the atmosphere taken up by the plants is fixed into a sugar molecule.

✅Explanation:

✏️Photophosphorylation:
-Photophosphorylation takes place during the light reaction of photosynthesis.
-Oxidative phosphorylation is a process by which energy-rich molecules called ATP are produced from ADP by utilizing the energy derived from the transfer of electrons.
-The phosphorylation process that takes place in the presence of light is called photophosphorylation.

✏️During photosynthesis, this transfer of electrons takes place in two ways:

• Cyclic Photophosphorylation:
-Cyclic electron transfer takes place.
-In this process, only Photosystem I is involved
-During this process, a high-energy electron released from a reaction center (P700) returns to the same reaction center.
-Thus the movement of electrons in this process is cyclic.
-Two ATP molecules are produced at the end of cyclic photophosphorylation.

✏️The cyclic phosphorylation process can be summarized as follows:
-The flow of electrons is as follows: PS-I (P700) → Primary electron acceptor → Ferredoxin → Cytochrome b6 → Cytochrome f  → Plastocyanin → P700.

• Non-cyclic Phosphorylation:
-It is a non-cyclic electron transfer process.
-It involves both the photosystems – Photosystem I and Photosystem II.
-In this process, the electrons released from a reaction center do not return to the same reaction center.
-At the end of the process, 1 ATP and 2 NADPH molecules are formed.
-Oxygen is released into the atmosphere by this process.
-The non-cyclic phosphorylation process can be summarized as follows: 
-The flow of electrons is as follows: PS-II (P680) → Primary electron acceptor → Plastoquinone → Cytochrome b6 →Cytochrome f → Plastocyanin → PS-I (P700) → Electron acceptors → Ferredoxin.
-Using the above-given information, let us now solve the given question.
-The correct sequence of the flow of electrons in the light reaction that matches the above-given information is Option 1: PS-II → Plastoquinone →  Cytochromes → PS-I → Ferredoxin