Assertion (A) :  [4] – annulene   aromatic 
                            {6}- annulene  aromatic
                           [8] – annulene  Non aromatic                 
Reason  (R):  Planarity, Conjugation,  Huckle rule, Cyclic is Requirements of aromatic systems

Assertion (A) is true and Reason (R) is false

Both Assertion (A) and Reason (R) are true and Reason is correct explanation of Assertion

Both Assertion (A) and Reason (R) are true but Reason(R) is not correct explanation of Assertion (A) 

Assertion (A) is false and Reason (R) is true