Which of the Following Sentences Illustrates Faulty Parallelism

Which of the following sentences illustrates faulty parallelism?

A) He likes to read and sleep.
B) She spends her time knitting sweaters and selling them at the farmer's market.
C) They spent the day visiting the shops and walked on the beach.
D) She wrote the report slowly and carefully.
E) The farm grooms horses for competing in races.