Which revision of the sentence corrects the faulty parallelism?

kyoko plans to spend time raking the leaves, mow the lawn, and hedge trimming.

a. kyoko plans to spend time raking the leaves, mowing the lawn, and hedge trimming.

b. kyoko plans to spend time raking the leaves, mow the lawn, and to trim the hedge.

c. kyoko plans to spend time raking the leaves, to mow the lawn, and to trim the hedge.
d. kyoko plans to spend time raking the leaves, mowing the lawn, and trimming the hedge.