[Q]: How does the sentence end?

He quickly solved the puzzle, but was unable to complete the maze, because the 
OPTIONS:
- puzzle was complex.
- maze was complex.

[A]: maze was complex.


[Q]: How does the sentence end?

Benjamin helped Lawrence to recaulk their bathroom tile as a favor, because 
OPTIONS:
- Benjamin was known to be inept.
- Lawrence was known to be inept.

[A]: Lawrence was known to be inept.


[Q]: How does the sentence end?

The candles of Cynthia don't look as neat as Rebecca's. Despite that 
OPTIONS:
- Cynthia is less experienced at candle making.
- Rebecca is less experienced at candle making.

[A]:
Rebecca is less experienced at candle making.