NFHS test #82

[shipwreck]

I need a little help here.

Question #82

Which of the following is true regarding knee and ankle braces that are unaltered from the manufacturer's original design/production?

a. They do not require any additional padding/covering.
b. They must be covered with athletic tape.
c. They must be padded with 1/2 inch thick foam.
d. They are permitted with a doctor's note.
e. All of the above.

The instructions there can only be one answer, but I have two. a and c. There is no statement that they must be covered with athletic tape so b is incorrect. Same with d. The rule states that a: is correct and d: Am I missing something?
Dave