Explanation/Reference:
These are the primary inputs of planning the business analysis approach. The primary input of planning the business analysis approach is to consider the problem or opportunity faced by the organization. Time allowed for business analysis planning does have an effect on the thoroughness of the business analysis activities. The risk associated with the plan is also considered.

Explanation/Reference:
Change-driven approaches focus more on frequency of communication than on formal documentation.
Official documentation is often in writing, but informal communication takes precedence over more formal written communication.
D is incorrect. The best answer is frequency of communication, not the type of communication.
A is incorrect. The best answer is frequency of communication, not correct communication - which
is important, but it's not the best selection for the question.
C is incorrect. The best answer is frequency of communication, not message of communication.
Having the correct message and correct communication channels are important, but these aren't the best selection for this question.