Y=-2x + 43 describes the temperature over this time, where y is the temperature in degrees Fahrenheit (°F) and x is the number of hours since measurements started. Which of the following statements correctly describes the temperature? A. It was -2°F after four hours, and it is rising by 43 degrees per hour.

B. It was 43°F when the temperature was first measured, and it is dropping by 2 degrees per hour.

C. It was 43°F after four hours, and it is dropping by 2 degrees per hour.

D. It was -2°F when the temperature was first measured, and it is rising by 43 degrees per hour.