Answer:
C. épargne
Step-by-step explanation:
To find the correct form of the verb, you would have to conjugate the verb "épargner" for the subject "je" (in this case written as "j' "... this is done when the verb begins in a vowel; since "je" ends in "-e", which is a vowel, the "-e" in "je" is replaced by an apostrophe, and is then placed directly in front of the verb, ameliorating the flow of the sentence).
To conjugate it, you would say "j'épargne". Keep in mind that "je" is a singular verb, thus it requires no "-s" at its ending.
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