Several customers are waiting for service. some are becoming angry. you and the other employees are not keeping up with the work. you can see more customers heading your way. what would you do?

I believe the answer is: Focus on my job and try to work as quickly as I can

You work in a team. Which means that each team members have their own workload to sustain. In situation above, the best thing you can do is focus on your workload and serve as much customers as possible. If you try to do the workload of others , you might risk abandoning your own and make the result become worse.

the third answer is correct.