A stock could be one of give possible prices on July 5, 2023. The prices and probability that the stock ends up at each price are probability 0.2, 0.3, 0.1, 0.3, 0.1. Stock price $40, $45, $50, $55, $60. What is the current price of the share? What would be the premium of 45 call? What would be the premium of a 50 put?