For this project, you will write a C++ program with the following 4 functions: 1. Write a function with the following description. /* * This function inspects the characters in the given array charArray * and returns true, iff the array contains a palindrome. * A palindrome is a sequnece of characters that reads the same * forward or backward: e.g. * {'m','o','m'} * {'e','y','e'} * {'r','a','c','e','c','a','r'} */ bool isPalindrome(char charArray[], int arraySize); 2. Write a function with the following description. /* * This function inspects the characters in the given array charArray * and counts the number of times targetChar occurs. * so for e.g. for the input array {'e','y','e'} and targetChar 'e', * this function should return 2, but for targetChar 'x', this function should return 0. */ int countHowMany(char charArray[], int arraySize, char targetChar); 3. Write a function with the following description. /* * This function inspects the characters in the given array charArray and * returns the character that has the highest number of occurrences. * * for e.g. for the input array {'e','y','e'}, the function returns 'e' * * for e.g. for the input array {'m','i','s','s','i','s','s','i','p','i'}, * the function returns 's' * * for input array {'c','a','r'}, the function is allowed to return any * arbitrary character within the array (e.g. 'c') * * You can assume that charArray[] contains only characters a-z and/or A-Z * */ char getMostFrequentChar(char charArray[], int arraySize); 4. Write another version of the above function that is able to ignore non-alphabetic characters from the array, but otherwise still functions the same way. /* * for the input array {'e', '1', '@', 'y','e', '1', 'Y'}, the function returns 'e' * (y and Y are both alpha, but considered separately) */ char getMostFrequentAlphaChar(char array[], int arraySize); Your main function should provide evidence of adequate testing performed for each of your functions.