I was thinking that Algol C would be a good example on how Triple Stars in Eclipsing Binary Systems and Evolving Close Binaries work. It's only 2.61 AU away from the main pair, and the third most massive. I wonder if it influences the EB pair and what would happen after B evolves into a white dwarf. It's close for a triple star system. C is the second most massive star in the system. I think this system is a good example for Evolving Triple Stars. Based off Wikipedia, it explains how B is evolving. I think this could be a rare opportunity. This is not a theory.