Problem: Here's a question and a few possible answers:   Q: Little cameras in the car made doing what easier? Possible A: technical difficulties, heat up, carpooler, set off, back up  Why is "back up" an answer aligned with human common sense?

A: in information technology


Problem: Here's a question and a few possible answers:   Q: What does a confident person do? Possible A: feel important, own house, trust himself, know what time, cry  Why is "trust himself" an answer aligned with human common sense?

A: no other option applied and a confident person trusts himself


Problem: Here's a question and a few possible answers:   Q: He said he also wanted in, he threatened to tattle what? Possible A: differently, mere, only, otherwise, anyway  Why is "otherwise" an answer aligned with human common sense?

A: otherwise | definition of otherwise in english by oxford dictionaries


Problem: Here's a question and a few possible answers:   Q: The man had been entertaining his whole life, being in his nineties now doing a show can lead to what? Possible A: suicide, fulfillment, embarrassment, fatigue, laughter  Why is "fatigue" an answer aligned with human common sense?

A:
at an advanced age, one does not have the same energy as their younger days.