Multiple choice technology databases What is the picture clause of the null indicator variable S9 (4) COMP-3 S9 (4) 9 (4) S9 (4) COMP Reveal answer Fill a bubble to check yourself D Correct answer Explanation In COBOL-DB2 programming, a null indicator variable must be declared as a 16-bit signed integer. The correct picture clause for this is S9(4) COMP (or S9(4) BINARY), which allocates a 2-byte binary storage area.