Which of the following is an example of "efficiency" as it relates to effective teams?

$$I found a way to perform the calculations twice as quickly with the same level of accuracy,$$ Lin shared. $$Can I show you how?$$

$$Would you mind if we change the plan and have you do the demo, while I handle the presentation?$$ Marcus asked. $$No problem,$$ Benjamin replied.

"Pam is going to take over managing the donor database," said Allie, $"$so that I can spend more time on event planning."

$$I think that you are doing an excellent job at work, sweetie,$$ Brian$$s wife tells him. $$I$$m really proud of you.$$