Quote from EquityGuy4321:
Actually, it's fine that the OP is going through this exercise of finding a "riskless" options trading strategy. If he/she sticks with the exercise sufficiently long they will hopefully understand how options work. The result will be that they will know why a riskless strategy is never possible (yes...even pure arbitrage, which almost never exists anymore, is not riskless), and then hopefully move on to understanding the different types of risk inherent in any given strategy, and how they work into appropriately expressing a trading view.
BINGO excellent post!