You have taken a protective put position by purchasing $100$ shares of AMR stock at $$20$ per

share and one AMR put option contract at a premium of $$1.$ The put has a strike price of $$15$ and

expires in $6$ months. What is the maximum potential loss for the protective put?

a$.$ $$100$

b$.$ $$500$

c$.$ $$600$

d$.$ $$800$