..9 am 2. Write a program to determine the drink size based on the letter the user enters. Print a message to the user giving the various drink size options and then prompt the user for the drink size. The user can enter an 's' or 'S' for smallan 'm' or 'M' for medium, and an ' or 'T' for large. Depending on which size the user requests, print a message such as: "You have ordered a (smallmedium, large) drink." In addition to displaying the size ordered, also record a price multiplier. The price multiplier for a small is 1, for a medium is 2, and for a large is 3. If the user does not enter a valid character, print an error message (such as "Error: Invalid drink size") and exit the program. You should use nested if-then-else statements for this problem. After the nested ifthen-else statements, print the value of the price multiplier to ensure that the correct value was recorded (the price multiplier will be used in program 4). Hint: use the logical OR expression in your comparisons