Step 1: Read the question.
What does the principle of Kompetenz-Kompetenz allow a tribunal to do?
Step 2: Translate the phrase.
Kompetenz-Kompetenz means competence to decide its own competence.
Step 3: Explain the idea.
It lets an arbitral tribunal rule on its own jurisdiction, that is, decide whether it has the authority to hear the dispute.
Step 4: See why it is needed.
Without it, every jurisdiction challenge would stop the case and send it to a court, causing delay and misuse. This principle keeps arbitration efficient.
Step 5: Eliminate the others.
It does not let a tribunal overrule a Supreme Court, force a settlement without a hearing, or hire counsel at the parties' cost.
Step 6: Conclude.
The principle lets the tribunal decide on its own jurisdiction.
Answer: Decide on its own jurisdiction.