To correct a sentence with faulty parallel structure in the verbs where one verb is on the present tence and one is in the past tence, change a) the first verb to the past tence and the second verb to the present tence b) both verbs to the present tense or change both verbs to the past tence c) the first verb to the present tence and the second to the past tence d) the first verb to the past perfect tence and the second verb to the present perfect tense