Which sentence contains parallel structure?
AMekhi was finally finished with his chemistry homework.
BMekhi finished his chemistry homework before basketball practice.
CMekhi spent three hours finishing his chemistry homework.
DMekhi finished his chemistry homework and then finished his essay.
AMekhi was finally finished with his chemistry homework.
BMekhi finished his chemistry homework before basketball practice.
CMekhi spent three hours finishing his chemistry homework.
DMekhi finished his chemistry homework and then finished his essay.