Type TC power and control cable may be used in what situation?

Type TC power and control cable is specifically designed to be suitable for a range of installation environments, including outdoor locations. It is built to be durable and resistant to moisture, making it capable of handling the conditions typically encountered in such settings when properly supported. The requirement to be "supported by a messenger cable" emphasizes the importance of providing additional structural support for the cable, ensuring it can withstand environmental factors like wind or precipitation without sustaining damage.

This attribute makes option C correct because it acknowledges the cable's capabilities while also highlighting the need for proper installation techniques when using it outdoors. This ensures that while the cable can perform in potentially challenging environments, it does so in a manner that promotes safety and reliability.