The answer is D =(<span>$A$1-$B$1)
sources:just took the test</span>
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops. It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial control systems which are used for controlling processes or machines.
Answer:
Sally sells sea shells by the sea shore
Explanation:
