The key answer of exercise 5

a)

1. It is a test of your personality.
2. Anybody can use it, but it is wisely used by companies for their workers.

b)

1. the people we work with
2. all kinds of people, often office workers
3. The interviewer asks questions about Mariella's lifestyle, what she does at the end of the day, whether she can put together flat-pack furniture, how she would react in certain situations and how she does her shopping.