Which phonetic code is used for the letter 'S'?

The phonetic code for the letter 'S' is represented by the word "Sierra." This is part of the NATO phonetic alphabet, which assigns a specific word to each letter to improve clarity in communication, especially over radio or telephone channels. Using "Sierra" to denote the letter 'S' helps ensure that the letter is clearly understood, reducing the risk of miscommunication.

The other options represent different letters: "Tango" is used for 'T', "Uniform" for 'U', and "Victor" for 'V'. Each of these words serves a specific letter, emphasizing the importance of using the correct phonetic representation for effective communication.