2. ABC, Inc., is considering several investment options. Each option has a minimum investment required as well as a maximum investment allowed. These restrictions, along with the expected return are summarized in Table 3. (figures are in millions of dollars). Because of the high-risk nature of Option 5 , company policy requires that the total amount invested in Option 5 be no more that the combined amount invested in Options 2, 4 and 6. In addition, if an investment is made in Option 3, it is required that at least a minimum investment be made in Option 6. ABC has $80 million to invest and wants to maximize its total expected return on investment. Write a GAMS model to determine which options ABC, Inc. should invest in. What is the maximum total expected return on investment