Multiple choice technology mainframe What do ypu mean by BLOCK CONTAINS 0? No Blocks Block size is unlimited The block size is determined at run time from the DD parameters The block size is determined at compile time from the DD parameters Reveal answer Fill a bubble to check yourself C Correct answer Explanation Specifying BLOCK CONTAINS 0 in a COBOL program indicates that the block size is not hardcoded in the program, allowing it to be determined at run time from the JCL DD statement parameters.