Today's price of Walmart's common stock is $150.A September 2021 call option on this

Walmart stock has an exercise price of $150 and costs $5.A July 2021 put option on this stock

also has an exercise price of $150 and costs $4.

1.What is the cost of holding the long call and long put, and what is this position called?

2.If the stock price is $135 at expiration, what is the portfolio of options worth?

3.If the stock price is $160, what is the portfolio of options worth?