$\"\"$

The rectangular patio has $\"\"$ long and $\"\"$ wide.

The area of the rectangular patio is $\"\"$ .

Observe the dimensions of figure:

The area of the stone slabe is $\"\"$ .

The number of stone slabs required to construct the rectangular patio is $\"\"$ .

Therefore, the option $\"\"$ is the correct choice.

$\"\"$

The option $\"\"$ is the correct choice.