What should be changed to make the following sentence true? Research suggests that there are two dimensions of our temperament that are important parts of our adult personality: interactivity and self-regulation.

a. The word "interactivity" should be changed to the word "reactivity."
b. The word "personality" should be changed to the word "self."
c. The word "self-regulation" should be changed to the word "reactivity."
d. The word "temperament" should be changed to the word "character."

Temperament is a person's nature or behavior. It is way people behave or exhibit. If a person is is clam and does not get angry easily, he is said to have a calm temperament.

In the sentence the word "interactivity" should be changed to the word "reactivity."

'Interactivity' is a thing which is done together and it affects each other. Whereas the word 'reactivity' in temperament may be defined as the degree to which one reacts to a particular situation or thing. And self regulation is the way people tend to behave or control one's nature accordingly. This two are the most influencing dimensions in the temperament of a human being.

Thus the answer is --

a. The word "interactivity" should be changed to the word "reactivity."