To answer this question, the user needs to have knowledge about procedure pointers in COBOL.

Option A is incorrect because the USING PICTURE clause is used to define the picture of data items.

Option B is incorrect because the USAGE IS FUNCTION-POINTER clause is used to define function pointers, not procedure pointers.

Option C is the correct answer. The USAGE IS PROCEDURE-POINTER clause is used to define procedure pointers in COBOL. Procedure pointers are data items that store the addresses of procedures.

Option D is incorrect because the USAGE IS FUNCTION-ADDRESS clause is used to define a data item that stores the address of a function, not a procedure.

Therefore, the answer is:

The Answer is: C. (3) The USAGE IS PROCEDURE-POINTER clause.