The arbitral tribunal may rule its own jurisdiction, including ruling on any objections with respect to the existence or validity of the arbitration agreement, and for that purpose:
1
An arbitration clause which forms part of a contract shall be treated as an agreement independent of the other terms of the contract
2
A decision by the arbitral tribunal that the contract in null and void shall not entail ipso jure the invalidity of the arbitration clause.
3
None of the above
4
Both (1) and (2)