To answer this question, we need to understand what DCB stands for and what it represents.
DCB stands for Data Control Block. It is a data structure used in computer systems to manage and control data transfer between devices or processes. The DCB contains information such as the location of the data, the data format, and various control parameters.
Now let's go through each option to understand why it is correct or incorrect:
Option A) Data Conditional Block - This option is incorrect. There is no such term as "Data Conditional Block" in the context of DCB.
Option B) Device Control Block - This option is incorrect. Although a Device Control Block is a valid term in computer systems, it does not match the abbreviation DCB.
Option C) Data Control Block - This option is correct. The abbreviation DCB stands for Data Control Block, which is a data structure used to manage and control data transfer.
Option D) Device Conditional Block - This option is incorrect. Similar to Option A, there is no such term as "Device Conditional Block" in the context of DCB.
The correct answer is C) Data Control Block. This option is correct because it matches the abbreviation DCB and represents the correct term for the given abbreviation.