Practice Question: What is a spread?

Which of the following combinations correctly describes a spread?

  1.  A combination of a short sale and a purchase of a call for the same stock
  2.  A combination of buying and selling calls on the same stock with different expiration dates and exercise prices
  3.  A combination of a put and a call on the same stock with the same expiration dates and exercise prices.
  4.  A combination of a purchase of a stock and a put