Answer: c. presentation punishment.
Explanation:
Presentation punishment involves adding an unpleasant or unwanted stimuli to a subject that will decrease the chances of them participating in the relevant activity again.
Praising Nolan must have been a presentation punishment to him that he did not want so in order to avoid being praised again, Nolan decides to avoid answering questions as he believes this will lead to the praise.
Answer:

Explanation:
Diana's age is d.
Carol is 3 years younger than half of her sister Diana's age.
Carol's age =
Where d is Diana's age.

Hence, Carol's age is
.
Answer:
mobile application, also referred to as a mobile app or simply an app, is a computer program or software application designed to run on a mobile device such as a phone, tablet, or watch.
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