What operation converts all letters to lowercase?

What operation converts all letters to lowercase?

• A. Lower
• B. Upper
• C. Length
• D. Logical operators

Answer: (A)

Converting all letters to lowercase is a case-changing operation that maps every uppercase letter to its lowercase counterpart while leaving non-letter characters the same. This standardizes text for tasks like case-insensitive comparisons. The Lower operation does exactly that: applying it to a string turns A–Z into a–z and leaves spaces, punctuation, and digits unchanged. That’s why it’s the best choice for turning text into lowercase. The other options do different things: Upper would make all letters uppercase, not lowercase; Length would tell you how many characters are in the string; Logical operators relate to true/false decisions and don’t modify text.

Converting all letters to lowercase is a case-changing operation that maps every uppercase letter to its lowercase counterpart while leaving non-letter characters the same. This standardizes text for tasks like case-insensitive comparisons.

The Lower operation does exactly that: applying it to a string turns A–Z into a–z and leaves spaces, punctuation, and digits unchanged. That’s why it’s the best choice for turning text into lowercase.

The other options do different things: Upper would make all letters uppercase, not lowercase; Length would tell you how many characters are in the string; Logical operators relate to true/false decisions and don’t modify text.