Which sentence has the most effective syntax?
A. Chewing a ragged nail and checking her watch, she jiggled her leg up and down.
B. After checking her watch, she jiggled her leg up and down chewing her nail.
C. Checking her watch, her leg jiggling up and down, she chewed a ragged nail.
D. Her leg jiggling up and down, she chewed a ragged nail and checked her watch.