Question

q13: over time, hoses in the cooling system may become brittle, break apart inside, or

○ develop soft spots
○ kink
○ shrink in inside diameter
○ discolor

Explanation:

Over - time, hoses in a cooling system can develop soft spots due to wear - and - tear, exposure to heat and chemicals. Kinking is less likely to be a natural long - term degradation compared to developing soft spots. Shrinking in inside diameter and discoloration are not the most common issues compared to soft spots for aging hoses in a cooling system.

Answer:

develop soft spots