Which of the following statements is correct?

a- In the Security Council, there are ten permanent members and five non-permanent members.
b- The main privileges of the five permanent members are permanency and veto power.

Only statement b is correct.

In the Security Council, there are FIVE permanent members and TEN non-permanent members.  The Charter gave the permanent members a privileged position to bring about stability in the world after the Second World War. The main privileges of the five permanent members are permanency and veto power.