Problem: How does the sentence end?

Angela was better at practicing piano than Megan and received the scholarship to music camp, so 
OPTIONS:
- Angela was excited.
- Megan was excited.
Answer: Angela was excited.

Problem: How does the sentence end?

Natalie does not want to light a cigar while Rachel wants to light a cigar.  
OPTIONS:
- Natalie lit a cigar.
- Rachel lit a cigar.
Answer: Rachel lit a cigar.

Problem: How does the sentence end?

John broke the tablet when he placed the box on it not knowing the 
OPTIONS:
- tablet is fragile.
- box is fragile.
Answer: tablet is fragile.

Problem: How does the sentence end?

The elastic band could stretch between the chairs but not around the beds, as the 
OPTIONS:
- chairs were close to each other.
- beds were close to each other.
Answer:
chairs were close to each other.