. explain the relationship in your answers to parts ​(b​), ​(c​), and ​(d​). ​(select all the correct​ choices.) a. results from ​(b​), ​(c​), and ​(d​) are the same because all methods value​ xia's assets today. b. whether xia pays out cash now or invests it at the​ risk-free rate, investors get the same value today. c. the point is that a firm can increase its value by more efficiently doing what investors can do by themselves​ (and is the essence of the separation​ principle). d. the point is that a firm cannot increase its value by doing what investors can do by themselves​ (and is the essence of the separation​ principle).