Which statement will create an array that references all character variables in a dataset?

The statement that creates an array referencing all character variables in a dataset is the one that uses the keyword _CHARACTER_. This special keyword automatically identifies and includes all character-type variables present in the dataset. By utilizing _CHARACTER_, the array declaration effectively gathers all the variables of type character, which can subsequently be manipulated or accessed using the array’s reference.

Using the keyword CHAR is incorrect because, although it might seem similar, it does not specifically signal all character variables, and it might not work as intended depending on the version and context in SAS. The alternative _ALL_CHAR_ is not a standard keyword recognized by SAS for this purpose.

Furthermore, the syntax in the last suggestion, which uses an asterisk immediately after the name "charVar," is inaccurate and does not conform to the correct syntax needed to create an array. The correct array declaration must use the parentheses appropriately to allow for dynamic referencing of all character variables using _CHARACTER_ to ensure that any future changes to the dataset, such as the addition or removal of character variables, will still hold the array reference valid.

Therefore, utilizing _CHARACTER_ as part of the array declaration is the proper method for capturing all character variables in the context