Find the Discount Date and Net Payment Date

Multiple Choice

Find the discount date and net payment date. (The net payment date is 20 days after the final discount date.)
-Invoice date: Nov 14
Terms:
ROG Goods received: Dec 13

A) Discount date: Dec 15; net payment date: Jan 15
B) Discount date: Jan 14; net payment date: Jan 30
C) Discount date: Dec 28; net payment date: Jan 18
D) Discount date: Dec 28; net payment date: Jan 17