-Refer to Exhibit 3-15.In Exhibit 3-15

question 72

Multiple Choice

-Refer to Exhibit 3-15.In Exhibit 3-15,

• A) there is a shortage of doctors at fee F₁.
• B) there is a surplus of doctors at fee F₁.
• C) Q₃ doctors are employed at fee F₁.
• D) Q₂ doctors are employed at fee F₁.
• E) both a and c

---

Definitions:

Solenoids

Electromechanical devices that convert electrical energy into linear mechanical motion, commonly used in valves, locks, and other actuating mechanisms.

Deadband

The range in which an input signal can change without eliciting any response in the output of a system or device, commonly used in control systems.

Activation-Deactivation Cycles

Refers to the repeated process of turning a system or device on (activation) and then off (deactivation).

Western African Emperor

Refers to historical rulers of empires in West Africa, such as Mansa Musa of the Mali Empire, noted for their wealth, power, and influence.