Exhibit: a Pay Telephone Using Coins Needs to Be

Exhibit: A pay telephone using coins needs to be installed in a public area. In the specifications, it is required that the telephone shall meet the ADA (American with Disabilities Act) requirement for front reach using a wheelchair. What will be the maximum reachable height or the value of "X"?

A) 760 mm (30 in)
B) 864 mm (34 in)
C) 1170 mm (46 in)
D) 1220 mm (48 in)
E) 1370 mm (54 in)