$1)$ A$.$ write a function called reverse that receives array of characters and returns the reversed of that array $[4$ points$]$B$.$ in the main function define a pointer that points to the above function and call it through the pointer $2)$ write a function that receives an array of characters, the function should return the number of words that has a specific pattern p $[9$ points$]$For example, consider that the function has received the following array:Welcome to comfortable pointers, complex compilers and forthcoming age of composite of common languages and the pattern p is comThe function should return $7$ which represents the number of words that contain the pattern p$,$ they are$1.$ Welcome $2.$ comfortable $3.$ Complex $4.$ Compilers $5.$ Forthcoming $6.$ Composite $7.$ CommonBut if the pattern p is comp the function returns $3,$ they are $(1.$ complex $2.$ compiler $3.$ composite$)3)$ Assume the following class. Answer the questions belowclass course$\{$char$*$ name;double mark$[3]$;$//$first$,$ second and final marks$\}$;$1.$ Write the all constructors for all parameter of the class$\mathrm{.}2.$ Write a function that takes a course and returns the final mark of this course$\mathrm{.}3.$ In the main function create array of $100$ courses$\mathrm{.}4.$ Write a function that returns all fail courses in the created array.