Development of embryo without fertilization is

✅Explanation:
-Apomixis is a form of asexual reproduction in plants where seeds are produced without fertilization. The embryo develops from a cell within the ovule, and the resulting seeds are genetically identical to the mother plant.

📌Other Options Explanations:
-Option C: Parthenocarpy: Parthenocarpy refers to the development of fruit without seed formation.

🔑Key Points:
-Apomixis: ''apo'' = without & ''mixis'' = mixing. It is a form of asexual reproduction that results in the formation of seeds without fertilization (i.e without the fusion of male and female gametes). It is seen in plants of species Asteraceae & grasses.
-It is a form of asexual reproduction that mimics sexual reproduction.
-There are two kinds of apomixis in flowering plants: Agamospery and vegetative propagation

✏️Agamospermy is further divided into three types:
-Adventive embryonic
-Parthenogenesis
-Apospory & Apogamy

• Adventive embryonic:
-Formation of embryo directly from the diploid sporophytic cells (nucellus or integuments) of ovule (other than zygote) is called adventive embryony
-It is seen in Citrus 

• 🛑Additional Information:
-Parthenogenesis: Formation of embryo from unfertilized egg
-Apospory & Apogamy: Formation of embryo from any other cell of embryosac (other than the egg) without fertilization.