For the Reaction Below, Kp = 1

For the reaction below, Kp = 1.16 at 890.°C.
CaCO₃(s) ⇌ CaO(s) + CO₂(g)
If a 22.0-g sample of CaCO₃ is put into a 10.4-L container and heated to 890.°C, what percent of the CaCO₃ will react to reach equilibrium?

A) 12.6%
B) 25.3%
C) 57.5%
D) 100.%
E) 54.9%