Suppose OEM stock is currently selling for $100, the call with a $100 strike price on the stock is selling for $3 and the call with a $120 strike price is selling for $1. Also, the put with the $100 strike price is selling for $2 and the put with the $80 strike price is selling for $4.

You expect the price to go up, but youre not sure about this, so you want to limit your payout and your losses. You decide to set up a bullish call vertical spread. List the specific assets you would buy or short (sell).