[Q]: How does the sentence end?

Matthew would never let Robert see their true emotions, because
OPTIONS:
- Matthew tended to be shy.
- Robert tended to be shy.

[A]: Matthew tended to be shy.

[Q]: How does the sentence end?

Cynthia was very keen that their home should be clean but Jessica was not, because
OPTIONS:
- Cynthia was very slovenly.
- Jessica was very slovenly.

[A]: Jessica was very slovenly.

[Q]: How does the sentence end?

More people bought the music CD than bought the album because the
OPTIONS:
- CD was newer.
- album was newer.

[A]:
CD was newer.