What is a common block comment notation used in many programming languages?

• A. (asterisk symbol) comment (asterisksymbol)
• B. /* comment */
• C. -- comment
• D. // comment

Answer: (B)

Block comments let you comment out multiple lines at once, which is handy for notes or temporarily disabling code. The notation that starts with /* and ends with / is widely used in languages like C, C++, Java, JavaScript, and CSS. Because it clearly marks the start and end of a comment block, it supports multi-line content without interfering with code. The other options describe line comments (// for a single line, -- in SQL and some other languages) or aren’t valid delimiters on their own, so the multi-line block form / comment */ is the standard choice for many languages.