Which of the following statement is correct?

		Suppose you wrote a call option and you want to cover your downside, you can write put of the same underlying asset
		Suppose you wrote a call option and you want to cover your downside, you can sell the underlying asset
		Higher underlying asset volatility leads to higher call option price under the Black-Scholes formula is because lower probability of the option to be out of the money
		Option holder buys option and have the right to exercise the option