Select the option that can be used as a one-word substitute for the given group of words.
A large, flat area surrounded by seats used for sports or entertainment.

Correct option is B

The correct one-word substitute for the given phrase is (b) Arena.
Explanation: An arena is a large, flat space surrounded by seats, often used for sports or entertainment events (Hindi: खेल का मैदान)।
Example: The cricket match was held in a massive arena packed with fans.
Meanings of Other Options:
· Option (a) Senate: A governing or legislative body (Hindi: सभा).
· Option (c) Department: A specific division in an organization (Hindi: विभाग).
· Option (d) Garden: A plot of land for growing plants (Hindi: बगीचा).