Rachel Was in an Auto Accident and Now Has a Form

Multiple Choice

Rachel was in an auto accident and now has a form of object agnosia.She has perfect 20/20 vision, but she cannot recognize the differences between animals when she sees them.For example, she cannot tell the difference between a giraffe and a zebra.Joel has a degenerative illness that has affected his retinas but is otherwise normal in all of his mental functioning.Which of the following statements is most accurate?

A) Rachel has impaired sensation, while Joel has impaired perception.
B) Rachel has impaired perception, while Joel has impaired sensation.
C) Rachel has an impaired absolute threshold, but Joel has an impaired difference threshold.
D) Rachel has an impaired difference threshold, but Joel has an impaired absolute threshold.