A driver is unable to pick out the numbers in an Ishihara color blindness test.
However, he is able to distinguish red, green, and amber stoplights. Which of
the following is accurate?
a. He may be fully qualified for 2 years.
b. He is disqualified.
c. He requires evaluation and clearance by an ophthalmologist.
d. He may be certified for only 3 months.