Please answer all of them with all explanations

A.2. Consider the following investment strategies: (a) A European call option on a share is sold for 4. The share price today is 47 and the exercise price is 50. (b) A European put option on a share is bought for 3. The share price today is 42 and the exercise price is 40. (c) A European put option to sell a share at an exercise price of 60 is bought for 4. (d) A European call option to buy a share at an exercise price of 50 is bought for 2.50. For each strategy, indicate: (i) Under which circumstances are the options exercised. (ii) Under which circumstances the buyer and the seller generate profits. (iii) Draw a diagram that shows how the net profits of each party depend on the price of the underlying asset at maturity