Many banks have a drive-through automated teller machine, built into the wall flanking the driver's side of a narrow aisle. Even though blind people obviously do not drive, these machines nonetheless invariably feature Braille – the system of raised dots used by the blind for reading and writing – in addition to the standard letters and numerals on their control panels.
Which of the following, if true, does the most to explain the situation described?
a)In most automobiles, the rear windows on the driver's side only roll down about halfway. Clearly out of scope.
b)Moderately visually impaired people who are still allowed to drive typically do not use Braille to read or write. This statement throws the situation into further confusion. If people whom one might imagine to be drivers as well as poor sighted do not use braille then why is it there??
c)Blind people can often read Braille just as quickly and accurately as sighted people can read regular writing.Does not provide an explanation for why amachine meant for car drivers has braille lettering.
d)The embossing technique used to form the raised dots does not typically add much to the overall cost of the automated teller machine.This option seems to address the point. However, just the fact that they cost the same to manufacture does not explain why they have fitted ATM machines with braille lettering at a place meant for car drivers.
e)In order to maximize profits per unit, manufacturers produce only a single model of automated teller machine. IMO. This clearly addresses the point. If there is only a single model in production then we have a reason for why there are machines with braille in a place meant for car drivers. Regardless of the location that the machines are going to be fitted at all machines will be having braille lettering. The "in order to maximize profits" part is irrelevant.
Kudos Please... If my post helped.