In Part A, the presence of the simile is comparing the daffodils to the stars by using a comparison through the comparison word "as". The characteristic that the author is comparing is continuous. Something continuous never ends; therefore, the correct answer is that the simile describes the endless rows of daffodils.
In Part B, the mood that the author creates through the use of the simile mentioned in Part A is C: energetic. In the sample sentence, the word twinkle implies movement, and this movement indicates that being energetic is one of the characteristics of the daffodils.
Direct quotations
Summary of a discussion
Information
Writer constructs a diagram from data provided by others
Rule of thumb is that if it is from someone else and not your own mind, you should document it.
The thesis is usually at the beginning of the essay. It states what you will talk about in the essay. It's kind of like a preview.