What is one advantage of using ASCII code for data communications?

ASCII (American Standard Code for Information Interchange) is a 7-bit character encoding system that provides 128 distinct characters. Because of this relatively large character set, ASCII can comfortably assign unique binary codes to both uppercase and lowercase letters, numbers, punctuation marks, and control characters. In contrast, earlier digital modes like Baudot (often used for RTTY) use a 5-bit code, allowing for only 32 combinations. To send numbers or punctuation, Baudot must use special 'shift' characters, and it generally only supports uppercase text. ASCII does not have built-in error correction, which makes option A incorrect. Option B is wrong because ASCII actually uses more bits per character (7) than Baudot (5). Option D describes a limitation of Baudot, not ASCII.