Help me

1. Hedging foreign currency cash-inflows with currency futures is preferred since:

a) the basis risk involved is usually very large

b) no payment has to be made upon a margin call

c) the hedge is almost perfect with small basis risk

2. A call option written on a foreign currency without owning the underlying stock:

a) can subject the call option writer to unlimited losses

b) can provide the valuable right of buying the foreign currency

c) cannot result in retaining the premium on the call option for option writer

3. Currency forwards differ from currency futures because currency forwards have:

a) daily marking to market and basis risks

b) linear payoffs but no daily marking to market

c) nonlinear payoffs and an option price or premium