B2. Part A During the past five years, a fund manager held a portfolio of 4,000 units of Stock X and 6,000 units of stock Y with the following data. (a) Find out the missing values (A) to (F) in the above table. (6 marks) (b) Determine the arithmetic mean of this portfolio's annual holding period return for the past five years. (1 mark) (c) Determine the geometric mean of annual holding period return for this portfolio for the past five years. (2 marks)