Question

• significantly different operation – motor spins continuously at a power value – servo rotates to a position between 0 to 100 degrees what is this options: optical sensor, motor, servo motor, potentiometer

Explanation:

The description mentions a device where a servo rotates to a position between 0 - 100 degrees (distinct from a regular motor that spins continuously). The "Servo Motor" option matches this description as servo motors are known for rotating to specific angular positions, unlike regular motors (which spin continuously) or the other options (optical sensor, potentiometer) that don't fit the rotational - position - based operation described.

Answer:

C. Servo Motor