Which of the following function converts a string to all uppercase?Aupper()Bisdecimal()Cswapcase()Dtitle()

To determine which function converts a string to all uppercase, let's analyze the options provided:

1. A: upper() - This function is used to convert all characters in a string to uppercase.
2. B: isdecimal() - This function checks if all characters in the string are decimal characters and does not convert the string.
3. C: swapcase() - This function swaps the case of each character in the string (uppercase to lowercase and vice versa) rather than converting it all to uppercase.
4. D: title() - This function capitalizes the first letter of each word in the string but does not convert the entire string to uppercase.

Final Answer

The correct function that converts a string to all uppercase is A: upper().