I believe he is drawing a parallel between a tone of pure joy and the most depressing despair.
Answer: This is all a matter of habit. A habit is something you have created that needs to be stopped. Sometimes you have to know what caused the habit. If you do not know what caused the habit, then that could be the reason why it is still happening.
Explanation:
D. the offer to schedule an alternate time for an interview shows Mr.Franklin that Michael Costas is interested in him
She set the table to get ready for lunch after lunch she went to lie or lay down for a nap