Consider the following assignment statement A = B * C + 5-D/B Assume all variables have been declared and assigned values as B=3, C-4, D=6 a) [1.5 Points] Generate the parse tree that corresponds to the above expression b) (1.5 Point) Specify the pre-fix expression for the above expression c) [1.5 Point] Specify the post-fix expression for the above expression d) (1.5 Points] Specify the above expression as valid statement using LISP programming language