Select the option that can be used as a one-word substitute for the given group of words.
A group of people travelling together in a van

Correct option is B

The correct one-word substitute is "Caravan".
Caravan: A group of travelers, especially traders or pilgrims, journeying together for safety in passing through deserts, hostile territory.
Hindi Meaning: (यात्रियों का काफिला)
Examples: The caravan moved slowly across the desert, each camel carrying goods for trade.
Meanings of other options:
 Gypsies is a term for a member of a traveling people with dark skin and hair, traditionally living by itinerant trade and fortune-telling.
 Brood refers to a family of young animals, especially of a bird, produced at one hatching or birth.
 Constellation refers to a group of stars forming a recognizable pattern.