Can anyone please help me with this question and please explain? Much THANKS!!

E//Question 6: (10 points) /Implement the function that creates and displays the user name of the user. Ask the user for their first and last name / /The username is the first letter of first name, followed by the last name. For instance, if the user's name is Kyle Mills, then the username is kmills Evoid createUsername() char firstName [15], while (getchar() != lastName [15], " "); userName [20]; // needed to get rid of In left behind by scanf and similar functions in code above // Enter your code here printf("Your %s", userName); user name