Which sentence has correct syntax?
A.
On a variety of subjects Roland's inquisitive nature helped him gain knowledge and acquire new skills.
B.
Inquisitive nature of Roland's helped him gain knowledge on a variety of subjects and acquire new skills.
C.
Gained knowledge Roland from his inquisitive nature on a variety of subjects and acquire new skills.
D.
Roland's inquisitive nature helped him gain knowledge on a variety of subjects and acquire new skills.