Questions: You are expecting an important email from a guest speaker who is considering doing an instant messaging 'Ask Me Anything' Chat with your students tomorrow, but you have to leave your classroom to fulfill your extracurricular duties on the tennis courts. What is the most efficient action you can take in order to receive the email and confirm the guest speaker's participation in the next day's event, despite being away from your desk? - Set an "away message" to notify your guest speaker you are away - Download and/or activate the Gmail mobile app on your smartphone - Have someone else cover your tennis practice - Bring your laptop onto the courts with you

The answer is: Download and/or activate the Gmail mobile app on your smartphone.

Setting an "away message" would inform the guest speaker that you are not at your desk, but it does not help you receive or respond to the email promptly. This option is not efficient for confirming participation in a timely manner.

This option allows you to receive and respond to emails in real-time, regardless of your location. By using the Gmail app on your smartphone, you can stay updated and confirm the guest speaker's participation immediately, making it the most efficient choice.

While this option would free up your time, it may not be feasible or practical, especially on short notice. Additionally, it does not directly address the need to receive and respond to the email efficiently.

Bringing a laptop to the courts might allow you to check emails, but it is not as convenient or practical as using a smartphone. It could also be cumbersome and risky in an outdoor setting like a tennis court.