If you think that the dollar is going to depreciate against the euro, you should:

a. buy put options on the euro.
b. sell call options on the euro.
c. buy call options on the euro.
d. none of the options

c.buy call options on the euro.

Explanation:

Buying call options is a trading strategy of securing financial contracts that give the buyers the privilege to buy a bond, stock, or other assets at a specified price, called strike price, for a certain period of time.People, especially traders, buy call options when they expect the price of a commodity or asset to rise higher in the near future. It helps them to buy large amounts of commodities or assets at a specified price even when the price value of such commodities or assets increases in the future.