Which of the following statements is correct in reference to the Veto Power in United Nations?

a- The vote of even any one permanent member of the  UN Security Council can stall the decision.
b- There has been a move to abolish or modify the veto system and the permanent members are likely to agree to such a reform.

Only statement a is correct.

All members have one vote. However, the permanent members can vote in a negative manner so that even if all other permanent and non-permanent members vote for a particular decision, any permanent member’s negative vote can stall the decision. This negative vote is the veto. While there has been a move to abolish or modify the veto system, there is also a realization that permanent members are unlikely to agree to such a reform.