Final answer:
The student assertion that states that if the coolant temp sensor switch is stuck closed, the cooling fan will stop when the ignition is turned off is incorrect. However, the assertion stating that when the A/C is turned on, the fan relay winding will be grounded through the condenser switch to activate the cooling fan is correct.
Step-by-step explanation:
Based on the given information, statement A is correct. If the coolant temperature sensor switch is stuck closed, it means that it is always detecting a high temperature, which would cause the cooling fan to continuously run even when the ignition is turned off. So, statement A is incorrect.
However, statement B is correct. When the A/C is turned on, the fan relay winding is grounded through the condenser switch, which activates the cooling fan. So, statement B is correct.
In conclusion, statement A is incorrect, statement B is correct. Therefore, the answer is Neither.