Which prefix would you add to the noun colonialism to make the meaning "after the period of colonialism? "

The prefix is post

Explanation:

To start with, a prefix is a word, number or letter that is placed or added to the beginning of a word in order to make a new word that has a different meaning.

Colonialism is a word that that simply describes the practice which a county exercise control over another country. When the prefix post is added to colonialism as in post-colonialism, the meaning changes to the aftermath of colonialism also known as the period after colonialism.

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."

i would have to say "a" or "d".