Random Numbers Generated by linear congruential methods are not truly random, why is this so? Describe the properties of the sequence of numbers these types of methods will produce.

Link to the Textbook needed: https://www.cec.uchile.cl/cinetica/pcordero/MC_libros/NumericalRecipesinC.pdf

Why are random numbers generated with linear congruential methods not truly random? Describe the properties of the sequence of numbers these types of methods will produce. (Read p. 274-276 in Numerical Recipes in C, 2nd Edition - link on Canvas)