Create a VBA script that solves a polynomial of either the $1$st$,2$nd$,$ or $3$rd degree. The user will

be prompted with an input box asking them to choose between the three options. Depending

on the user choice, the script will then prompt the user to enter the coefficients a$,$ b$,$ c$,$ and d

depending on the polynomial order requested. The script will also prompt the user to input a

desired calculation point. Using one or more subfunctions, calculate the value of the

polynomial at the requested point