Kayla has a weekly budget of $640. She works at a clothing store and makes $220 per week, plus 20% commission on the merchandise she sells to her customers. Which of the following is the correct interpretation of the solution?

A. Kayla can sell $2,100 or less to reach her weekly budget
B. Kayla needs to sell $2,100 or more to reach her weekly budget
C. Kayla needs to sell more than $2,100 to reach her weekly budget
D. Kayla can sell less than $2,100 to reach her weekly budget