Answer:
B. Because he had soon designed several toys of his own, and he had also done many kinds of book illustrations, he was able to sell his work to other toy companies.
Step-by-step explanation:
Subordination refers to how two clauses in a sentence are joined together where on clause is dependent on the other.
Coordination refers to how two clauses, phrases or words in a sentence are given the same emphasis. This is usually done by using: and, but, for, or, not, yet and so.