To answer this question, we need to understand the concept of REDEFINES in COBOL.

In COBOL, the REDEFINES clause is used to define two or more data items that occupy the same storage location. Essentially, it allows you to define different data items that share the same memory space.

In this case, we have two data items:

1. WS-TOP: This is defined as a single character element.
2. WS-TOP-RED: This is defined as a redefinition of WS-TOP, but with a length of 2 characters.

When you MOVE "12" to WS-TOP-RED, it means that you are assigning the value "12" to the memory space occupied by WS-TOP-RED. Since WS-TOP-RED redefines WS-TOP, both data items share the same memory space.

Now, when you DISPLAY WS-TOP, it will show the value stored in the memory space occupied by WS-TOP. Since "12" was moved to WS-TOP-RED, which redefines WS-TOP, the value displayed will be the first character of the moved value, which is "1".

Therefore, the correct answer is B) 1.

• Thanks
• Wrong explanation