Calculate the value of Kp for the equation C(s) + CO₂(g) ⇌ 2CO(g), given that at a certain temperature:
C(s) + 2H₂O(g) ⇌ CO₂(g) + 2H₂(g), Kp1 = 3.01
H₂(g) + CO₂(g) ⇌ H₂O(g) + CO(g)

a) 1.87
b) 3.75
c) 5.62
d) 9.23