I'm trying to solve this task but I'm obviously stuck. Will anyone help me solve it?

In a certain company three newspapers are published. 20% of the population read A, 16% read B, 14% read C, 8% read A and B, 5% read A and C, 4% read B and C, and 2% read all 3 newspapers. A person is selected at random.

**a)** none of the papers
**b)** at least one of the papers
**c)** exactly one of the papers
**d)** A or B (or both)
**e)** A, given that the person reads at least one paper
**f)** C, given that the person reads either A or B (or both).