The following reasons are applicable to why marketing can be important for future employment:
- Marketing can help in selling your ideas in a new job.
- Marketing can help in getting a job.
The other options, while potentially relevant in different contexts (such as learning new software), are not directly tied to the core functions and benefits of marketing in relation to future employment. "Marketing can show how to accurately calculate depreciation" is not a relevant reason for the importance of marketing in employment.