Chapter 06 · Section 6.1
Spread Requirements
What is necessary to create a spread?
c) to sell a call and to buy a put.
No. Both positions are on the same "side" of the market, i.e. they both profit from decreasing prices of underlying. Actually, this position is similiar to the sale of the underlying.
a) to buy a put and to buy a call.
b) the sale and the purchase of an option of the same type with different exercise prices and/or expiration dates.
(Click here for help)