The correct answer is C. Stope.
An intrusive igneous body is a mass of magma that has cooled and solidified beneath the surface of the Earth. Stocks, dikes, and batholiths are all intrusive igneous bodies, while stopes are not.
A stock is a small, irregularly shaped intrusive igneous body that is typically less than 10 kilometers in diameter. Dikes are tabular or sheet-like intrusive igneous bodies that are typically less than 100 meters thick and several kilometers long. Batholiths are large, irregularly shaped intrusive igneous bodies that are typically more than 100 kilometers in diameter.
Stopes are underground excavations that are used to extract ore or other minerals. They are typically formed by blasting or by cutting with a machine. Stopes are not intrusive igneous bodies because they are not formed by the cooling and solidification of magma.