Python Question of the Day Feb. 21, 2025

The following code asks a user to input a response. What string method can be used to ensure that the phrase “Invalid response” only displays if the user types something other than “yes” or “no”, without paying attention to the text’s capitalization?

birthday = input("Is today your birthday? (yes/no): ")
if birthday == "yes":
    print("Happy Birthday!")
elif birthday == "no":
    print("Happy Unbirthday!")
else:
    print("Invalid response")

1. Correct Answer
   Incorrect Answer
   a

   .upper()

2. Correct Answer
   Incorrect Answer
   b

   .lower()

3. Correct Answer
   Incorrect Answer
   c

   .swapcase()

4. Correct Answer
   Incorrect Answer
   d

   .strip()