If Kevin wants to bounce a ball, but only has a basketball and a baseball, the 
OPTIONS:
- basketball is his better bet because it's less dense.
- baseball is his better bet because it's less dense.
basketball is his better bet because it's less dense.

Nick did not have a compost pile like Randy because 
OPTIONS:
- Nick was ignorant about environmental problems.
- Randy was ignorant about environmental problems.
Nick was ignorant about environmental problems.

Robert entered into Brian's office, but our moody boss was not around. 
OPTIONS:
- Robert was relieved.
- Brian was relieved.
Robert was relieved.