Concept:Legal tender is the officially recognised money that must be accepted when offered for payment of a debt.
Explanation:Legal tender is created and issued by the central bank or government of a country.
Bank notes are paper money issued by the central bank, so they are legal tender.
A cheque is only a written instruction to a bank; it can be refused, so it is not legal tender.
A traveller's cheque is a prepaid instrument for travellers; it is not guaranteed by law as a medium of exchange.
A goldsmith receipt was an old form of paper money, but it is not legal tender in modern times.
The law requires creditors to accept bank notes for settlement of debts.
Other forms of money like coins and bank notes are legal tender, but cheques and receipts are not.
Therefore, among the options given, the only legal tender is the bank note.
Answer:C. Bank note