Question

if a crankcase pressure issue is not resolved, it may cause

a. the gasket to pop out of place
b. vacuum leaks
c. the evap system leak detector to fail
d. drivability issues

Explanation:

When crankcase pressure issues persist, the excess pressure can exert force on components like gaskets. Gaskets are used to seal areas and prevent leakage. Excessive pressure from an unresolved crankcase pressure problem can dislodge the gasket from its proper position. Vacuum leaks (b) are more related to issues in the intake manifold vacuum system. The EVAP system leak detector (c) failure is specific to the evaporative emissions system. Drivability issues (d) are a broader category and not as directly and specifically caused by an unresolved crankcase pressure issue as gasket displacement.

Answer:

a. The gasket to pop out of place