Meaning of "all kinds of"

[Kelly Mandraic]

English Error, Elementary Level

ESL/EFL Test #2 "Be careful", question 8

The good thing about computers is that you can find all kind of information about everything.

(a) about
(b) that
(c) all kind of

English Error, Elementary Level

ESL/EFL Test #2 "Be careful", answer 8

The good thing about computers is that you can find all kinds of information about everything.

Correct entry: all kinds of
The error was: (c) all kind of
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meaning of "all kinds of"

Don't understand!
Kelly

[Conchita]

All kinds of means 'all types of', 'all sorts of' or 'all varieties of': there are all kinds of reasons why I don't like it.