Instead of getting into physical fights when they want to intimidate or get even with
one another, adolescents sometimes spread vicious rumours to destroy the reputation
of another student. these behaviours are an example of
a) extreme prejudice.
b) assertiveness.
c) instrumental aggression.
d) antisocial behaviour e) hostile aggression.

Option (c) is correct.

The behavior given in the question are examples of Instrumental aggression. It is a terminology that refers to a calculated intrusive state that takes place in order to accomplish a specific goal. It is characterized by strong emotion, such as anger, and is targeted towards hurting another individual.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !