The answer is the third one “it is”
Answer:
what is the question because all it is saying is :
Explanation:
Question: The expression strategic planning began to be used by companies at the end of World War II. Over time, the tools of strategic analysis were perfected and valued, especially after the dissemination of the concept of business unit. About business units, we can say that: Each business unit simulated an autonomous company, with the resources needed to define and execute a strategy for the market in which it acted.
When (to be): I small, I (enchant) visit my cousin's house
The answer would be A.
Casa is house/home and it makes the most sense in this sentence :)
Have a good day!