4. Based on the information provided in the following table, please answer the questions gv Stock A $70 200-572-200 $36-40) Stock B85 500 S8 500 81 500 Stock CS105 300 8 300 98 300 a. Based on a value-weighted index constructed using the information provided above, what is the rate of return or percentage change in the index for the first period (t-0tot 1)? (5 Points) the change be necessarily the same if you were to use an equally-weighted index instead of a valu b. Would weighted index? Explain. (2 Points)