Abigail is buying coffee beans to brew coffee for a special celebration. Dark roast beans cost $4 a pound, and light roast beans cost $3 a pound. She plans to buy at least 7 pounds of beans and spend no more than $27. Which of the following is a possible combination for the number of pounds of beans she can buy?
Question 20 options:

A)

2 pounds of dark beans and 6 pounds of light beans

B)

5 pounds of dark beans and 5 pounds of light beans

C)

8 pounds of dark beans and 1 pound of light beans

D)

4 pounds of dark beans and 2 pounds of light beans