David takes $10$ minutes to process a customer, and $20$ minutes to stock the shelves. Danny takes $15$ minutes to process a customer, and $15$ minutes to stock the shelves. Which of the following statements is TRUE?

A$)$ David has an absolute advantage in performing both tasks.

B$)$ Danny has an absolute advantage in performing both tasks.

C$)$ David has a comparative advantage in processing customers but not in stocking shelves.

D$)$ Danny has a comparative advantage in processing customers but not in stocking shelves.

E$)$ Danny has a comparative advantage in processing customers and in stocking shelves.