$[10$ points$]$ Declare the following records using structures.

a$.$ A student record called Student consisting of a student name $($a string of size $20),$ a student ID number, number of credit complete, and GPA.

b$.$ A stock record called Stock consisting of the stock's name $($string of size $20),$ the price of the stock, and the date of purchase. For the date, declare another structure Date containing day, month, and year.

$[5$ points$]$ Use the following structure typedefine an array of $12$ structures of type Mon$\_$days. Name the array convert $[]$ and initialize the array with the names of the $12$ months in a year and the number of days in