Derive the closed-form solutions for the maximum bending moment and deflection in the following (4) scenarios: (A) Simply Supported Beam of length (L), Point Load (P) at midspan (B) Simply Supported Beam of length (L), Uniform Distributed Load of magnitude (w) throughout (C) Cantilever Beam of length (L), Point Load (P) at beam tip (D) Cantilever Beam of length (L), Uniform Distributed Load of magnitude (w) throughout.