Dickens was a very popular novelist, but he had to set a grueling schedule for himself in order to meet his public's demands,
for many of his novels were serialized, so he had to publish a new installment every week. A. The sentence uses excessive coordination.
B. The sentence uses excessive slang
C. The sentence does not have enough independent clauses
D. The sentence uses excessive subordination.
The sentence uses excessive coordination and doesn't have enough independent clauses because they're all joined together and coordinated.
The sentence should be like this:
Dickens was a very popular novelist. He had to set himself a grueling schedule in order to meet his public's demands. Therefore, his novels were serialized and he had to publish a new installment every week.