With the given class definition, what is the correct syntax for calling method b?

The correct syntax for calling method b relies on understanding how to reference class methods and instances in ABAP. In this context, the method b is likely defined within a class, indicated by the naming convention 'zcl_a'.

When invoking a method defined in a class, if the method is static (i.e., it belongs to the class itself and not an instance), the appropriate syntax utilizes the class name followed by the method name, which is represented here as 'zcl_a->b()'. This is consistent with ABAP's object-oriented structure where class methods can be accessed directly without requiring an instance.

If method b were invoked as an instance method (if, for example, the class had to be instantiated), then an object reference variable would be used. In the case of using 'lo_a', it would imply that 'lo_a' is an object of a class from which method b could have been called, but without additional context it would not point to the correct class context implied by option B.

Understanding the significance of static and instance methods is key to knowing why calling b with 'zcl_a' is valid, especially since 'zcl_a' implies you are accessing a class method directly within the structure of its class definition