Which of the Below Statements Is TRUE

Which of the below statements is TRUE?

A) Stock options cannot be used to take advantage of the anticipated price movement of individual stocks.
B) An investor can protect against a decline in the price of a stock in her portfolio by buying a call option on that stock.
C) By taking an appropriate position in a suitable stock index option, an institutional investor can create a protective put for part of the diversified portfolio.
D) A protective put buying strategy allows an investor to protect against a decline in the price of a stock in her portfolio by buying a put option on that stock.