Select the correct answer.
The area of a duck enclosure is 300 square feet, with 100 square feet occupied by a pond. Each duck in the enclosure needs more than 20 square feet of space on dry land. If x ducks can be put in the enclosure, which is the simplest inequality that represents this situation?
A.
x < 6
B.
x < 10
C.
x < 15
D.
x < 20