What happens when you add -tion to the word complete?

a. It changes a verb into a noun

Explanation:

When you add -tion to the word "complete", it changes a verb into a noun.  

-tion is a suffix that forms abstract nouns from verbs or even from word stems that may not be identical with verbs - it maybe expressing action, state or meaning.  

Suffixes are known to be a letter or group of letters which are added to word endings in order to change their meanings or functions. They are affixes which are placed after word stems.

Option A is the correct answer.

ghhh

explanation:

gvg