it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.
What is a generalization? a. a series of events that make up what happens in a story b. hints or clues that tell you what is going to happen in a story c. the final resolution or event that ties up loose ends in a story d. a simple statement about something complicated
Iwill have sailed around the world by the end of next year. what is the verb form in the sentence? future perfect past emphatic present progressive past perfect