B. because those suffixes would be making a noun more descriptive
B is correct because all of the verbs are in the same tense.
Answer:
Instead of drawing one hair at a time, think about the shape a __group___ of hairs make when clumped together. When sketching keep in mind the __egg_ shape roundness of the head. Start off by drawing _loose_ hairs around the face. Always try to break complex things into _simple_ shapes. blend your lines as the hair would softly bend around the _sphere_ of the head.
Explanation:
The tone would be determined by the kind of people the author is writing for. A story for children is going to have a different tone than a graduate thesis even if they are on the same topic.
Hope that helps.