I think no.B is the an example of a simple sentences
Answer:
The thesis may take one of three forms: a research thesis, an artistic thesis, or a project thesis. In each case, the thesis represents a synthesis of the student's accumulated knowledge and skill and an opportunity to display the ideas, practices and skills learned through the program.
The answer is the first one.
In "Writers often disavow the notion of a 'literary duty'" the author conveys a somewhat condescending attitude, as if they would always follow this and set aside anyone who said otherwise. This attitude says the author is looking down on them, and that the author believes that many authors do not meet their standards.
Another answer I would consider is "...writers ruined by their shrill commitments." However, there is no context or clear tone. The author could be mournful of the lost potential for all we know.
