Answer:
Option A
Explanation:
When trying to understand issues, silence is a great tool, To be in the mood of silence, it helps to get every details of an issue or explanation.
Relating this to the answer choices above, it is very useful when you are following detailed analysis of the client issues, when your client is trying to explain the what he/she observed to be the root cause of a problem, when you are silence and paying attention, it help you to understand your customers pain point and helps to figure out how to solve the problem.