The correct answer is C. contributory.
A contributory is a person who is liable to contribute towards the assets of a company on the event of its being wound-up. This means that they are responsible for paying a portion of the company’s debts if it goes bankrupt.
A liquidator is a person who is appointed to wind up a company. They are responsible for selling the company’s assets and distributing the proceeds to the creditors.
A solicitor is a lawyer who provides legal advice and representation to clients.
A tribunal is a body that hears and decides disputes. In the context of company law, a tribunal may be appointed to hear disputes between a company and its creditors.
I hope this helps!