Difference between what and why

[Kalon]

English Grammar Tests, Elementary Level

ESL/EFL Test #47 "Question Words", question 4

She wants to know ......... you like your coffee.

(a) how
(b) what
(c) which
(d) who

English Grammar Tests, Elementary Level

ESL/EFL Test #47 "Question Words", answer 4

She wants to know how you like your coffee.

Correct answer: (a) how

Your answer was: incorrect
She wants to know what you like your coffee.
_________________________

What is the difference between what and why?

Kalon

[Yankee]

Hi Kalon

The word why refers to a reason, purpose or cause.
http://dictionary.reference.com/browse/why

The word what is used in a number of different ways, but basically it refers to a thing.
http://dictionary.reference.com/browse/what

Amy