Which of the following is the solution to the compound inequality below?
3x+5 ≥-1 or -2x-7 ≥5

a. x ≥2 or x ≥-6
b. x ≥-2 or x ≤-6
c. x ≥5/3 or x ≤-7/2
d. x ≥-5/3 or x ≥7/2