Please mark the only Equity Trade in Latin American Equities that it is obviously INCORRECT

a. Short Telmex stock and buy an out-of -the money Telmex call with a strike price slightly above the initial stock price S

b. Go long Petrobras stock for a stock price = S and write a put on the same stock with a strike price which is slightly below S

c. Write a call option on Banco Itau stock and at the same time short-sell Itau stock

d. Go long Brazil EWZ ETF and short Mexico EWW ETF