Article 27 UN Charter prescribes the VOTING PROCEDURE in the Security Council. Decisions on substantive (non-procedural) matters require:

1. Article 27(2) UN Charter: 'Decisions of the Security Council on procedural matters shall be made by an affirmative vote of nine members.' 2. Article 27(3): 'Decisions of the Security Council on all other matters shall be made by an affirmative vote of nine members INCLUDING THE CONCURRING VOTES OF THE PERMANENT MEMBERS; provided that, in decisions under Chapter VI, and under paragraph 3 of Article 52, a party to a dispute shall abstain from voting.' 2. The 'concurring votes' requirement has been INTERPRETED through practice — an abstention by a permanent member is NOT treated as a veto (since the 1946 Soviet abstention on the Spanish question). 3. Each P5 (P5 = China, France, Russia, UK, USA) has an effective VETO power on substantive matters. 4. Hence option B is correct. _Source: UN Charter 1945 / Vienna Convention on Law of Treaties 1969 / ICJ Statute / ARSIWA 2001 — UN Charter 1945, Article 27(3); 'veto' practice_