Choose the pair which is related in the same way as the words in the first…

Concept:

This analogy follows a part-to-whole (member-to-collective) relationship: the first pair names an individual role and the specific collective noun used for a group of such individuals; the second pair must use the collective noun that correctly names a group of the second kind of individual.

Application:

SOLDIERS are the individual members who together form an ARMY, the collective noun for a body of soldiers. Following the same relationship, MUSICIANS are the individual members who together form a BAND, the standard collective noun for a group of musicians who perform together.

Cross-check:

• FLOCK names a group of birds or sheep, not people who perform together, so it does not fit the analogy.

• GANG denotes an informal or often criminal association of people, not the standard term for musical performers.

• COLONY refers to organisms of the same kind living together (e.g., ants or settlers), not to a musical group.

Only BAND preserves the same part-to-whole relationship as SOLDIERS : ARMY.