Answer: 30

The correct answer is **C** because the profit for the seller of a European put option is calculated as: \[ \text{Profit} = -\text{Max}(0, X - S_T) + P_0 \] Where: - \(X\) is the exercise price (1,320), - \(S_T\) is the underlying asset's price at expiration (1,340), - \(P_0\) is the put option price (30). Substituting the values: \[ \text{Profit} = -\text{Max}(0, 1,320 - 1,340) + 30 = -0 + 30 = 30 \] Options A and B are incorrect because they represent calculations for a call option or misinterpret the payoff formula for the put option seller.

Author: LeetQuiz Editorial Team