Aoption is an option to purchase a specified number of shares of a stock on or before some future date at a specified price, whereas a option is an option to sell a specified number of shares of a stock on or before some future date at a specified price. are purchased if the stock price is expected to fall. a. call: put; calls b. put; call; puts c. put; call; calls d. call; put; puts

d. Call; Put; Puts

Explanation:

A call option is a financial agreement that gives the authority to buy a particular asset at a particular price in a specified time period. If an investor thinks that the price of a stock will go up they will exercise the call option to buy the stock at the agreed lower price when the market price is higher and thus make a profit out of the transaction.

A put option is a financial agreement that gives the right to investor to sell the stock at a higher price in case the price of the stock falls in a specific limit of time. This again allows investors to make profits when and if the put is exercised in case of fallen stock price.

Hope that helps.

107x106 is the answer