Call options give the buyer the right to buy a stock at a set price, known as the strike price, while put options give the buyer the right to sell a stock at the strike price. The buyer pays a premium for this right. Straddle options involve buying both a call and put on the same stock with the same expiration date and strike price, allowing profits from volatility in either direction. Options trading involves risks and requires an understanding of margin accounts to cover the potential obligations. Let the buyer beware when trading options.