(a) Write a Python program to determine whether a character entered is a vowel or not. (b) Write a Python program that finds the greater value of 3 numbers. (Note: the numbers can be all equal) (c) Write a Python program that prompts the user to enter a number between 1-7 and displays the corresponding day of the week. (1 is Monday, 2 is Tuesday, and so on) (d) Write a Python program that prompts the user to enter a character, and checks the following: Did the user enter a character? Is it uppercase or lowercase? -