Which would be considered an instrument or method of measuring relative time

clocks, watches, or stop watches

the length of an alligator

• radiometric dating

tree rings, showing one ring for each year of growth

clocks, watches, or stop watches

Explanation:

Relative time has to deal with how people view time in terms of what a clock or watch measures.

This singular act definition involves the measurement of time with devices such as clocks and watches.

The clocks, watches, or stop watches are validated and is the answer.