"If your firm expects the euro to substantially appreciate, it could speculate by euro call options or euros forward in the forward exchange market."

purchasing; purchasing

Explanation:

Call option can be explained as the means through which someone has a right to buy a thing at an agreed or certain price  within a specific time frame or a particular date.

Forward exchange market can be described as a market where forward contract is made. Forward contract is a kind of contract or agreement usually between two individuals or parties in exchanging or delivering designated currencies at a specified exchange rate  at a specific time in the future.

It should be noted that both call option and forward contract protects the buyer from the flunctuations in the prices of currencies during that agreed specific time frame.

In this case, the firm that foresees or expects a substantially appreciation in euro can adopt these two methods.

i do believe its modular luck

explanation:

answer(b); ; ; the quantitative or qualitative variable for which the experimenter wishes to determine how its value is affected by the explanatory variable;