Answer:
Correct answer is C. ii and iii only
Step-by-step explanation:
C is the correct answer because first option is the only one that is not correct.
Namely, there aren't 192, but 193 member states of UN.
Second option is a correct one as all states are trying to create a common approach according to which they will try to prevent conflict.
Third option is also correct as according to article 51 they have right to take certain measures to protect themselves.