Which of the Following Is a Downside to an Integration

Which of the following is a downside to an integration strategy?

A) Neither firm wants to preserve its best cultural features.
B) The acquired firm usually wants to have the culture of the acquiring firm imposed on it.
C) Since both company's have strong cultures, one must be weakened as a result of the merger.
D) It is difficult to merge firms in different industries.
E) It is slow and potentially risky.