Which are correct ways to add a comment in a data definition?

In ABAP, comments can be added to a data definition to improve code readability and maintainability. The correct syntax for comments is significant because it helps developers understand the purpose and context of the code without affecting its execution.

The syntax "/*...*/" denotes a block comment, which can encompass multiple lines or a portion of a line. It begins with /* and ends with */, allowing any text within these markers to be ignored during code execution. This is particularly useful for explaining complex code sections or providing detailed descriptions.

The other options reflect incorrect or incomplete comment syntaxes: /.../ does not conform to the recognized commenting styles in ABAP. The // syntax is also not valid for comments in ABAP, and /*.../* is improperly nested, which makes it syntactically incorrect. Understanding these distinctions is crucial for writing clean, effective ABAP code.