B is the correct answer I think
The correct answer is parenthesis. A parenthesis normally appears in sentences when extra information unrelated to the main idea of the sentence is inserted. The trick in knowing if a phrase can be included in a parenthesis is when you take it out and the idea of the sentence is intact.
Hector should first start reading more so as to get acquainted with various styles of writing and ultimately find one he is the most comfortable with. Then he should write more and more, practice a lot because only through practice will he be able to improve. He might ask his friends to help him, or write to a writer for help, gather information and advice on writing, and ultimately, develop his own techniques and improve his writing.
