A entered into a contract whereby he obligated himself to pay B on or before September in the form of Australian currency. When the obligation became due and demandable, A delivered to B Australian currency. Is A correct?

• A. B can refuse to accept the payment because the currency being offered is not legal tender in the Philippines.
• B. A is correct in offering Australian currency because of the contract.
• C. A is not correct because the stipulation to pay in Australian currency is void because it is contrary to law.
• D. A is not correct because the stipulation to pay in the form of another currency is void because it is contrary to public policy. (RA 8183)