Which of the Following Is a True Statement

Which of the following is a true statement?

A) A low pressure A/C cutout switch may prevent A/C compressor operation in extreme cold ambient temperatures.
B) A low pressure A/C cutout switch may prevent A/C compressor operation if there is insufficient refrigerant in the system.
C) A high pressure A/C cutout switch may prevent A/C compressor operation if the air flow through the condenser is restricted.
D) All of the above are true statements.