PLS HELP!!! Which of the following sentences correctly demonstrates parallel structure?

Question 4 options:

A. A major Romantic poet, John Keats wrote brilliantly, loved hopelessly, and died prematurely.

B. A major Romantic poet, John Keats wrote brilliantly, loved hopelessly, and who died prematurely.

C. A major Romantic poet, John Keats wrote brilliantly, loved hopelessly, and he died prematurely.

D. A major Romantic poet, John Keats wrote brilliantly, loved hopelessly, and at a premature age died.