Last year, Amada grew fresh vegetables, which she sold at her local farmers market, but this year, Amada did not plant any vegetables and went to work at a bank instead. Which of the following best explains Amada's career change? Select one: a. Amada's opportunity costs of working at the bank exceeded Amada's opportunity costs of gardening. b. Amada's opportunity costs of gardening exceeded Amada's opportunity costs of working at the bank. c. Amada's opportunity costs of gardening exceeded Amada's benefits from working at the bank. d. Amada's opportunity costs of working at the bank exceeded Amada's benefits from gardening