The correct answer is D stick to your subject. By sticking to your subject, you will essentially be writing with the purpose of upholding your thesis, or argument, which is the most important aspect of a paper. Option A is incorrect because this depends on the piece you're writing. For example, if you're writing a short story, then a description based on one of your senses would be excellent imagery. However, if you're writing an argument paper, it would be better to offer a description based on reputable sources. B and C are both incorrect, because you will want to include relevant details. You shouldn't take away details that would support your thesis, and you shouldn't add irrelevant details that would take away from your argument.
