insurers requesting for membership of Nigeria Insurers Association is required by law to?

(i) have been registered with NAICOM (ii)operate with sound insurance principles (iii) hold membership of CHN (iv)  ascribe to the policy holding of NIA 

A.

i, ii and iii only

B.

i, ii and iv

C.

i, iii and iv

D.

ii, iii and iv

Correct answer is B

No explanation has been provided for this answer.