MPLX LP (NYSE:MPLX) is one of the stocks Jim Cramer answered questions about. When a caller mentioned that they invested in the stock, Cramer remarked: Well, you know, I like it from the book. I think that’s a terrific, inexpensive stock… I put those stocks in for one particular reason because I think it’s great to have some income as you get older. That’s not a younger person stock; that’s an older person stock. I one day might have to look at it as I grow in wisdom. Photo by Nicholas Cappello on Unsp ...