Review the passage:
To save enough money to pay tuition, Tanisha keeps a strict budget.
She never carries more than three dollars in her wallet.
To avoid making impulse purchases like a pizza or T-shirt that will cause
her to come up short when registration begins.
You chose the second part, She never carries more than three dollars in her wallet. This part has a main clause: She is the subject; carries is the verb. A fragment will not have a main clause.