Couplet = couple = 2 lines
Quatrain = quadruple = 4 lines
Sestet = 6 lines
Octave = octagon = 8 lines
Thats how I try to remember it.
Answer choice C, Yes this is self plagiarism.
The correct answer is B. <u>Future Perfect Tense</u>
<u>Future perfect tense</u> is used to express an action which the speaker assumes that will be completed or will ocurr in the future, giving a sense of completion task that will happen in the future.
In this case, the speaker is refering with "by the end of the day" as the future, and "baked" is the verb or task that will be completed in the respective time.