Which component is an example of skill-related fitness?
the balance needed to hold a handstand without falling
the endurance that leg muscles need to run long distances
the ability of a bicep muscle to lift a heavy weight
the flexibility to stretch a leg muscle after exercise

An example of skill related fitness is the balance needed to hold a handstand without falling.

Handstand is a very very difficult skill that a normal person can not execute. The balance and strength needed to withstand its pressure and keep standing inversely is an art to be honest.

All other options do not contain any skill in fact just have practice and regularity as well as a little bit of hard work obviously.