The most serious problem with aggression is that

Ait's sometimes necessary to change our goals.
Bwe aim it at people or things that are not the cause of our frustration.
Cit can cause property damage.
Dwe remove the obstacle that is the cause of our frustration

Verified Answer :

The answer is letter B.

Aggression
is sometimes aimed at people or things that are not the cause of most
frustrations. Usually aggression is destructive to a person's social status and
can cause major conflicts. People who are usually aggressive have frustrations
that are not clearly identified that's why they tend to send their energies to
their external environment---mostly directed to people who they are either
close with or sometimes are random. Aggression may cause violent tendencies
that may bring self-inflicting harm or harm to others.