Select the most appropriate option to improve the underlined segment in the given sentence. If there is no need to improve it, select ‘No substitution required'.
A large swarm of dogs was blocking the way.

Options

A. pack of
B. herd of
C. No substitution required
D. school of

Answer

A

Explanation

Swarm- A large group of insects, especially bees. Pack- Group of specific canines like wolves and dogs. Hence, ‘A pack of dogs’ will be the most appropriate answer