What is the best way to combine
these sentences?

The young scout was very excited
about the upcoming campout. He
packed his bag a week early.

A. The young scout, who packed his bag a week
early, was a very responsible person.

B. Packing his bag a week early for the
upcoming campout, the very excited, young
scout.

C. The young scout was so excited about the
upcoming campout that he packed his bag a week
early.