4. Put a (✓) if the statement is correct and (x) if incorrect.

a. Tanka were gold and silver coins. ..........

b. Coinage remained unchanged with the changes in dynasties. ..............

c. Mamluks were slaves. ...........

d. Jahanpanah is the name of the thirdcity of delhi. ............

e. Urdu is originated during the sultanate. ..........




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