Answer: Configure a response for external senders.
Explanation:
Since Kylee wants to ensure that when a particular client sends her an email while she is on vacation, then the email will be forwarded to a coworker for immediate handling, then she should configure a response for external senders.
It should be noted that the response will not be configured for internal senders as it isn't from a co-worker but rather meant for a client. Therefore, the correct option is A.
Normally you can't. You cannot tell if water has been frozen and then thawed.
This would be a mentor-D. They role is to mentor or guide you with advice or assistance. A role model is a similar answer in that they respect you, but they might not offer advice or assistance which makes it incorrect.