C program problem First Name Validator

Objective: Develop a program that prompts users to input their first name and checks its validity based on specific criteria.

Instructions:

$1.$ The program should ask the user: "What is your first name?"

$2.$ Ensure the entered first name starts with an uppercase letter and contains only alphabetic characters.

$3.$ If the user's input doesn't match the criteria, the program should prompt again: "Invalid input! What is your first name?"

$4.$ Continue prompting until a valid name is entered.

$5.$ Once a valid name is provided, the program should confirm: $"[$Name$]$ is a valid first name."

Coding Standards:

$-$ Use clear and descriptive variable names.

$-$ Ensure your code has appropriate whitespace and is well$-$commented.

$-$ Rigorously test your program with a wide range of inputs to ensure robust implementation and exact output as provided in the examples.

For example: