Answer:
c. what product markets and businesses the firm should be in
Explanation:
A corporate level strategy focuses on the goals of the company which shall affect the entire organisation, and involves further the entire participation at the company level to achieve such targets from such strategy.
This involves the strategy to calculate properly what is beneficial to the company and what is not beneficial.
Thus, the company considers to what it shall manufacture and what business it should do, in order to attain maximum growth in market.