Final answer:
The correct answer is Option A -Tion, which forms a noun from a verb.
Step-by-step explanation:
The correct answer is Option A -Tion.
The suffix -tion is used to form a noun from a verb. For example, the verb 'associate' becomes the noun 'association' when the suffix -tion is added. In this case, the student is looking for a verb form of 'to become associated with,' so -tion is the correct choice.
Learn more about Suffixes in English