D.) The house is reasonably priced and the design is intended to aid in the efficient running of a household --- Elinor was the sister know for her good sense. Therefore, an appeal to the basics would best persuade her.
It's subjunctive, I've looked up the meaning of each word.
The word clarinet is used as a noun
Sentence A is correctly punctuated.
I think I will wear tan pants and a green cotton shirt to school on Wednesday.
The other sentences have commas where they are not needed.