Which value or values for the variable c from the set below, will make 5.6 + 0.4c ≤ 6c true?

(Remember,  ≤ means less than and/or equal to.)


(0, 0.875, 1, 2.5)








A. Only 2.5
B. 1 and 2.5
C. 0.875 and 1, and 2.5
D. all values in the sets.​