So I'm trying to understand margin/leverage/options a little bit more, I'm in a simulated options game on Investopedia. I want to leverage a stock option, I believe the stock will rise in price, so if I buy a call option, I am buying the right to buy that stock at the strike price? I'm also not exactly sure how margin works, the way I understand it is that it is just basically a loan and that you are responsible for however much money you have borrowed to leverage the trade. So let's say I believe the stock Raytheon(RTN) is going to rise in price from $154.79 to $170.00 over the next 6 months. How would I take advantage of this by using options and margin at the same time?