C Programming
What's wrong in the following statement, provided k is a variable of type int?for(k = 2, k <=12, k++)

The increment should always be ++k .
There should be a semicolon at the end of the statement.
The commas should be semicolons.
The variable must always be the letter i when using a for loop.
The variable k can’t be initialized.

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C Programming
What is the difference between a declaration and a definition of a variable?

There is no difference between them.
Both can occur multiple times, but a definition must occur first.
Both can occur multiple times, but a declaration must occur first.
A definition occurs once, but a declaration may occur many times.
A declaration occurs once, but a definition may occur many times.

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