C Character Handling Function

What is the output of the following code?

• Digit

• Not a digit

• Logic Error

• Runtime Error

Which function will convert the character 'a' to 'A' in the following code?

• tolower(ch)

• toupper(ch)

• islower(ch)

• isupper(ch)

What will be the output of the following code?

• Space

• Not a space

• Syntax Error

• Runtime Error

How does isalpha() function work?

• Checks if a character is a digit

• Checks if a character is alphabetic

• Checks if a character is lowercase

• Checks if a character is uppercase

What does the isupper() function check?

• If a character is a digit

• If a character is uppercase

• If a character is lowercase

• If a character is a punctuation mark