To answer this question, we need to understand the purpose of transaction code ST04 in SAP.
Option A) DB Performance Monitor - This option is correct. The transaction code ST04 is used for the DB Performance Monitor in SAP. It provides detailed information about the performance of the database, such as CPU utilization, I/O statistics, buffer statistics, and locks. It helps monitor and analyze the performance of the database system.
Option B) Business objects builder - This option is incorrect. The transaction code for Business Objects Builder is different and not ST04.
Option C) Message Maintenance - This option is incorrect. The transaction code for Message Maintenance is different and not ST04.
Option D) SAP Data transfer workbench - This option is incorrect. The transaction code for SAP Data Transfer Workbench is different and not ST04.
The correct answer is A) DB Performance Monitor. The transaction code ST04 is used for monitoring the performance of the database in SAP.