Which statement about doing a situation analysis is correct?

Which statement about doing a situation analysis is correct?

It is effective if the researcher has good knowledge about the management decisions to be made.

Good data are available from the government but obtaining them is expensive.

Libraries have good data on specific topics, but they are expensive to find.

A good situation analysis is usually more expensive than collecting primary data.

It doesn$$t make sense to start a situation analysis until the problem has begun to surface.