The purpose of using good email techniques is to

The correct answer is: quickly get responses to your questions.

Explanation:

Using good e-mail techniques will provide the sender with a quick response.

When somebody uses good email techniques it will help him/her to receive a quick answer, as the receiver will have a complete understanding of the message that the sender is trying to transmit, so the sender could reply promptly to such emails.

the graphs indicate that few people in bolivia work in industry, as that is the least expressive sector shown in the respective graphic.