A student chooses to begin a two-year apprenticeship that pays $\$10\,000$ each year. Once this ends, she expects to receive $\$25\,000$ per year. Instead of doing the apprenticeship, she could take an unskilled job that pays $\$16\,000$ per year. What is the opportunity cost over the two years spent completing the apprenticeship?
- A$\$10\,000$
- B$\$12\,000$
- C$\$25\,000$
- D$\$32\,000$