Sarah, a middle$-$aged woman, was struck down as she crossed the street at $41$st and Knight streets by a car whose driver accidentally went through the red light. She was not killed, but badly injured. Unfortunately, she was suffering from osteoporosis a condition which her bones had lost most of their mass and were fragile and brittle.

Consequently, the bones in her legs were not expected to heal at all. She lost the use of her legs. She successfully sued the driver for negligence. With regard to the question of the amount of damages to be paid by the defendant, which of the following is correct?

$)$ An amount to cover the full extent of the injury suffered

$$ An amount to cover the extent of injury that would have been suffered by the average person

An amount to cover the extent of injury that would have been suffered by the average middle$-$aged woman, because a reasonable person would not have foreseen the extent of injury actually suffered

Special damages only