Laney Has Offered to Serve Meals at the Local Homeless

Laney has offered to serve meals at the local homeless shelter, but when she was told that she would have to give up most of her Saturday free time, she decided not to volunteer after all. Laney's decision could be predicted by the

A) cost-benefit analysis model.
B) transfer benefit model.
C) excitation-cost model.
D) arousal/cost-reward model.