please answer question 3B, thank you

3. Draw the payoff and profits of this strategy: (30 points) a. You establish a straddle on Walmart using September call and put options with a strike price of $50. The call premium is $4 and the put premium is $5. What are the breakeven points? b. You want to lower your total cost. Following the previous straddle strategy, additionally, you sold a $60 call for $2 premium and sold another $20 put for $1 premium. Draw the payoff and profit of this butterfly strategy. What are the breakeven points