What are each of us aware of having that we assume everyone else has as well?

In a Functional Job Analysis, the category "things" is defined as:

A) physical resources, such as strength. B) objects required for the work, such as a computer. C) things someone needs to do on the job, such as make an omelette. D) information someone needs to obtain on the job, such as dollars earned.

Simone wants to stop biting her nails. She should:

a. practice that behavior often, so she can control it. b. understand the inner reasons why she performs the behavior. c. meditate so she will no longer need that behavior. d. find a desirable behavior to increase at the expense of the undesirable one.