Some companies give all new hires e-mail etiquette training that covers the basics including how to communicate quickly but with courtesy, what not to put in writing, and the importance of proofreading e-mails before sending them.

Active listening

argon

Written communication

A). Active listening.

Explanation:

Active listening is demonstrated as the skill or technique that involves paying complete focus and attention to the speaker, understanding his/her idea or message coherently, and responding to them thoughtfully.

In the given question, the companies train their employees to learn the art/skill of 'active listening' that would allow them to communicate and respond quickly and courteously. This requires that the new hires listen attentively to what is being said to understand the idea or message coherently ('what not to put in writing') and its significance ('importance of proofreading e-mails'). This would allow them to respond to the messages thoughtfully. Thus, option A is the correct answer.