Find r (A )and n (A )a. r (A )space equals space 0 comma space space space space space n (A )space equals space 4 b. r (A )space equals space 3 comma space space space space space n (A )space equals space 1 c. r (A )space equals space 4 comma space space space space space n (A )space equals space 0 d. r (A )space equals space 2 comma space space space space space n (A )space equals space 2 e. r (A )space equals space 1 comma space space space space space n (A )space equals space 3 f. r (A )space equals space 3 comma space space space space space n (A )space equals space 2