Consider the following discrete probability distribution of payoffs for two securities, A and B, held in the trading portfolio of a bank:- Probability 55.00% 44.00% 1.00% Payoff A $120m $95m -$1,100m Probability 55.00% 44.00% 0.30% 0.70% Payoff B $120m- $100m -$1,100m -$1,414m ** a) What is the expected return of security A and the expected return of security B?H [3 marks] b) According to VaR (Value at Risk), which security is adding more market risk to the bank's trading portfolio? Make sure your calculations are clear and explain your answers. [5 marks] c) According to ES (Expected Shortfall), which security is adding more market risk to the bank's trading portfolio? Make sure your calculations are clear and explain your answers. [5 marks] d) Compare your answers in items b) and c) and discuss the advantages and pitfalls of each of the two risk measures