Question

This question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are most logically related: 
A: Some buildings are not skyscrapers.
B: Some skyscrapers are not buildings.
C: All falcons are birds.
D: All birds are yellow.
E: All birds are thirsty.
F: All falcons are yellow.
 

• A. CDF
• B. BCA
• C. ABC
• D. DEF

Hint:

When analyzing combinations of statements, check for logical consistency in their relationships and ensure the combinations are true.

Answer 1

The Correct Option is B

Step 1: Analyze each statement. A: "Some buildings are not skyscrapers" suggests that not all buildings are skyscrapers.
B: "Some skyscrapers are not buildings" seems incorrect, as skyscrapers are generally considered buildings.
C: "All falcons are birds" is a true statement.
D: "All birds are yellow" is not generally true.
E: "All birds are thirsty" is an assumption, but not true universally.
F: "All falcons are yellow" is an assumption, but not necessarily true.
Step 2: Find the set of statements that logically relate. Set (2) B, C, A is consistent in terms of how birds, falcons, and buildings are categorized. Thus, the correct answer is: \[ \boxed{B, C, A}. \]