Collective-noun analogy: “A : Herd :: Star : B”. Select A and B so that each second term denotes the correct collective/grouping.

Introduction / Context:
Collective nouns name groups. A “herd” refers to a group of grazing animals such as cattle; a “constellation” is a recognized grouping/pattern of stars.

Given Data / Assumptions:

• Herd → cattle, buffalo, etc.
• Stars are grouped/patterned as constellations in astronomy.
• We require correct group-label matches.

Concept / Approach:
Match each item with its standard collective noun: herd–cattle and stars–constellation.

Step-by-Step Solution:
1) Map herd to cattle.2) Map star to constellation.3) Choose the single option that contains both matches.

Verification / Alternative check:
“Solar system” is not a collective noun for a set of nearby stars; it is a planetary system around one star.

Why Other Options Are Wrong:

• Wolves/Solar System: Wolves’ collective is “pack”; solar system is a planetary system.
• Sheep/Sum: Sheep → flock, not “sum.”
• Fish/Planet: School/shoal for fish; “planet” is unrelated to stars’ grouping.
• Horses/Galaxy: Horses → team/herd; a galaxy is far larger than a pattern group like constellation.

Common Pitfalls:
Confusing astronomical scales (constellation vs. galaxy vs. solar system).

Final Answer:
A. Cattle, B. Constellation