Visibility Hidden The following orders arrive at the floor of an exchange Time Type Price Size 9.31 Buy 30.10 100 9.32 Buy 30.11. 200 933 Sell 30.14 250 9.34 Sell Market 400 9.34 Sell 30.13 200 9.35 Buy 30.12 200 9.35 Buy 30.12 250 Trader Bob Ben Sam Sue Sally Bif Barry Hidden hidden a. What is the bid price and ask price at 9.34 am? (20 pts) b. Describe whether or not a trade can be executed at 9.34 am? If so, list the trades. Identify the names of the buyers and sellers, the price and quantity each trader receives or pays. (40 pts) c. Describe whether or not a trade can be executed at 9.35 am? If so, list the trades. Identify the names of the buyers and sellers, the price and quantity cach trader receives or pays. (40 pts)