Which prefix is commonly used to denote hexadecimal literals in many programming languages?

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Multiple Choice

Which prefix is commonly used to denote hexadecimal literals in many programming languages?

Explanation:
The key idea is how programmers indicate the base of a numeric literal. Hexadecimal numbers are written with a base-16 prefix so the language knows to interpret the following digits in base 16. The prefix 0x is widely used across many languages (C, C++, Java, JavaScript, Python, and others) to signal that the digits that follow are hexadecimal, using 0-9 and A-F. For example, 0xFF represents 255 in decimal, because F stands for 15 and FF is 15×16 + 15. The other prefixes don’t serve this purpose in mainstream languages. 0b is used for binary literals, not hex. 0d and 0s aren’t standard prefixes for decimal or any common hex notation, since decimal numbers typically appear without a prefix or with specific language syntax.

The key idea is how programmers indicate the base of a numeric literal. Hexadecimal numbers are written with a base-16 prefix so the language knows to interpret the following digits in base 16. The prefix 0x is widely used across many languages (C, C++, Java, JavaScript, Python, and others) to signal that the digits that follow are hexadecimal, using 0-9 and A-F. For example, 0xFF represents 255 in decimal, because F stands for 15 and FF is 15×16 + 15.

The other prefixes don’t serve this purpose in mainstream languages. 0b is used for binary literals, not hex. 0d and 0s aren’t standard prefixes for decimal or any common hex notation, since decimal numbers typically appear without a prefix or with specific language syntax.

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