Though she started with the guitar two years later. Allie plays the oboe and the guitar very well now.

A.
Though she started with the guitar two years later Allie plays the oboe and the guitar very well now.

B.
Though she started with the guitar two years later, Allie plays the oboe and the guitar very well now.

C.
Though she started with the guitar two years later, but Allie plays the oboe and the guitar very well now.

D.
Though she started with the guitar two years later; Allie plays the oboe and the guitar very well now.