Please help with this question! Thank you!!

Suppose stock XYZ is currently trading at $120. Consider the following trading strategy using options written on the stock: buy the call option, sell the put option, sell the stock, and buy a risk-free security. The strike price of both the options is $110, the time to expiration is five years, and the risk-free rate is 0%.

a) (10 points) What is the payoff of the trading strategy on the option maturity date? Explain in fewer than three lines using the put-call parity.

b) (10 points) If this trading strategy represents an arbitrage opportunity, what condition should hold regarding the difference in the call and put prices? In other words, is C-P > 10 or C-P < 10? Explain in fewer than three lines.