$\"\"$

The sequence is $\"\"$ .

Fine the common differences of the sequence.

$\"\"$ ( $\"\"$ term)

The common difference is $\"\"$ .

Therefore the sequence is arithematic sequence.

Find the next term.

Add $\"\"$ to the third term in the sequence $\"\"$ .

$\"\"$ .

The next term of the sequence is $\"\"$ .

The sequence is $\"\"$ .

$\"\"$

Option A is right choice.