i need these two answered

You have decided to dissect you grandparent's investment "portfolio" to determine their expected return on the portfolio and the risk associated with their investments. You were under the impression that your grandparents had a wide array of securities that they were investing in, however, you find that they have invested all of their retirement money into two securities. The first security (60 percent of the portfolio) has an expected return of 16 percent with a return standard deviation of 19.8 percent. The other security (40 percent of the portfolio) has an expected return of 11 percent with a return standard deviation of 31.1 percent. You have looked at the correlation of returns between the two securities and have found that the correlation coefficient is 0.48. What is the expected return of the portfolio (do not round until your final answer)? Select one: a. Less than 10% b. Between 10% and 15% c. Between 15% and 18% d. Between 18 and 21% e. Greater than 21% What is the risk (standard deviation of the portfolio (do not round until your final answer)? Select one: a. Less than 10% b. Between 10% and 15% c. Between 15% and 20% d. Between 20% and 25% O e. Greater than 25%