Which statement describes a key advantage of Unicode for modern text encoding?

Which statement describes a key advantage of Unicode for modern text encoding?

• A. It is identical to ASCII.
• B. Unicode uses a fixed 7-bit encoding.
• C. It cannot represent symbols beyond basic Latin.
• D. Unicode assigns code points to characters and supports global scripts and emoji.

Answer: (D)

Unicode assigns a unique code point to each character and includes virtually every writing system plus symbols and emoji. This broad coverage means you can encode Latin, Cyrillic, Arabic, Chinese, and many other scripts in one standard, plus mathematical symbols and emoji, which makes text storage, display, and processing consistent across different languages and platforms. Unicode isn’t tied to a single fixed width; it defines the code space and supports multiple encoding forms such as UTF-8, UTF-16, and UTF-32. For example, UTF-8 is variable-length and backward-compatible with ASCII for the first 128 characters, blending efficiency with wide compatibility. The other statements don’t fit because ASCII is limited to 128 characters and 7-bit encoding would not accommodate the vast range of characters Unicode covers.

Unicode assigns a unique code point to each character and includes virtually every writing system plus symbols and emoji. This broad coverage means you can encode Latin, Cyrillic, Arabic, Chinese, and many other scripts in one standard, plus mathematical symbols and emoji, which makes text storage, display, and processing consistent across different languages and platforms. Unicode isn’t tied to a single fixed width; it defines the code space and supports multiple encoding forms such as UTF-8, UTF-16, and UTF-32. For example, UTF-8 is variable-length and backward-compatible with ASCII for the first 128 characters, blending efficiency with wide compatibility. The other statements don’t fit because ASCII is limited to 128 characters and 7-bit encoding would not accommodate the vast range of characters Unicode covers.