Which of the following is a fruit?

Chilli

Chilli is considered a fruit.
The chilli pepper is the fruit of plants from the genus Capsicum, which belong to the nightshade family Solanaceae.
Despite being commonly used as a spice, chilli peppers are botanically fruits, not vegetables.
Chilli peppers are related to other fruits like tomatoes, cherries, and eggplant.
Originated in South America, but are now grown worldwide for culinary and medicinal purposes.
Andhra Pradesh is the largest producer of chilli in India, with a 57% share of total production.
China is the largest producer of chillies worldwide.
🔴 Additional Information
Potato

The potato is a starchy tuber from the plant Solanum tuberosum, part of the nightshade family Solanaceae.
It is native to the Americas.
Potatoes rank as the fourth-largest food crop worldwide after maize, wheat, and rice.
Uttar Pradesh is the largest producer of potatoes in India.
Onion

The onion, also known as the bulb onion or common onion, is a vegetable from the genus Allium.
It is one of the most widely cultivated species of the genus.
The shallot is a variety of onion.
Major onion-producing states in India: Maharashtra, Karnataka, Madhya Pradesh, Gujarat, Bihar, Andhra Pradesh, Rajasthan, Haryana, Telangana.
Maharashtra ranks first in onion production with a share of 28.32%.
Garlic

Garlic is a bulbous flowering plant in the genus Allium.
Its close relatives include onion, shallot, leek, chive, Welsh onion, and Chinese onion.
Rajasthan is the largest producer of garlic in India.