The hitch used to secure the standing part of a gantline to the horns of a stage is a __________.

Correct Answer: Option C — marlinespike hitch

A marlinespike hitch is the standard knot used to secure the standing part of a gantline to the horns of a stage. This hitch provides a secure, temporary attachment that allows for easy adjustment while ensuring the line remains firmly in place during rigging operations.