When can multiple variables and lengths be specified in a LENGTH statement?

The LENGTH statement in SAS allows you to specify the lengths of both character and numeric variables. This means that you can list multiple variables and their corresponding lengths in a single LENGTH statement. Specifically, these variables can be separated by spaces, enabling a compact and efficient way to assign lengths to multiple variables simultaneously.

Using this statement is particularly useful because it can improve the efficiency of your data step by reducing the amount of code you must write. When multiple variables are declared in this manner, it makes your code clearer and easier to manage.

The incorrect options focus on limitations that do not apply. For instance, stating that only character variables can be specified would overlook the fact that numeric variables can also be included. Additionally, suggesting that they must share the same length or that only numeric variables can be used fails to recognize the full functionality of the LENGTH statement, which is designed to be flexible and handle both character and numeric variables effectively.