SAT Math Practice Question

$$H=1.88 L+32.01$$The formula above can be used to approximate the height $H$, in inches, of an adult male based on the length $L$, in inches, of his femur. What is the meaning of 1.88 in this context?

1. A.The approximate femur length, in inches, for a man with a height of 32.01 inches
2. B.The approximate increase in a man's femur length, in inches, for each increase of 32.01 inches in his height
3. C.The approximate increase in a man's femur length, in inches, for each one-inch increase in his height
4. D.The approximate increase in a man's height, in inches, for each one-inch increase in his femur length