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$1.$ You buy a call option to purchase $1,000$ shares with a strike price of $$50,$ the current stock pri rice is $$48,$ and option price is $$3.$What is your initial investment?

$2.$ You buy a put option to purchase $1,000$ shares with a strike price of $$50,$ the current stock price is $$48,$ and option price is $$3.$ What is your gain$/$loss from the investment if the price on expiration date is $$42?$

$3.$You buy a call option to purchase $1,000$ shares with a strike price of $$50,$ the current stock price is $$48,$ and option price is $$3.$ What is your gain$/$loss from the investment if the price on expiration date is $$52?$