Answer:
On a more secure side, the firm should accept position in call just as put to support the conversion scale hazard totally.
Size of a call choice on euro is 10,000 units in euro, in this way, the firm will require 10-call choices on the euro with strike in pounds.
Size of put choice on pound is 10,000 units in pound, and one pound is equivalent to 1.25 euro, along these lines, to support the payables of euro 100,000 the firm will require 8 put choices.
Accordingly, the firm ought to by 10 call alternative on the euro and sett 8 put choice on the pound. Along these lines, the right answer is 'first decision'.