If $k$ is an integer, what is $|$~$k$~$|?$

$|$~$k$~$|=$

Why?

The ceiling of an integer is always the positive value of the integer.

The ceiling of an integer is is lways greater than the integer.

The ceiling of an integer is equal to the integer.

The ceiling of an integer is always less than the integer.

The ceiling of an integer is the difference between the integer and the floor of the integer.