[Q]: How does the sentence end?

I am pretty good at drawing curves on paper unlike lines, because the
OPTIONS:
- curves are flawless.
- lines are flawless.

[A]: lines are flawless.

[Q]: How does the sentence end?

Megan decided to sing a song at the talent show that Mary was judging.
OPTIONS:
- Megan was happy to decide who won first place.
- Mary was happy to decide who won first place.

[A]: Mary was happy to decide who won first place.

[Q]: How does the sentence end?

Betty asked Jessica when the roses would bloom, because
OPTIONS:
- Betty had little knowledge about flowers.
- Jessica had little knowledge about flowers.

[A]:
Betty had little knowledge about flowers.