To answer this question, we need to understand the purpose of the OBJECT parameter and the attributes it can modify.
The OBJECT parameter is used in the allocation of new data sets in IBM mainframe environments. It specifies the attributes of the data set being created, such as storage class (STORCLAS), management class (MGMTCLAS), space allocation (SPACE), and volume (VOLUME).
Now let's go through each option to determine which attribute cannot be changed using the OBJECT parameter:
Option A) STORCLAS - This option is incorrect because the STORCLAS attribute can be changed using the OBJECT parameter. The STORCLAS attribute specifies the storage class for the data set.
Option B) MGMTCLAS - This option is incorrect because the MGMTCLAS attribute can be changed using the OBJECT parameter. The MGMTCLAS attribute specifies the management class for the data set.
Option C) SPACE - This option is correct because the SPACE attribute cannot be changed using the OBJECT parameter. The SPACE attribute specifies the space allocation for the data set, such as the primary and secondary space allocations.
Option D) VOLUME - This option is incorrect because the VOLUME attribute can be changed using the OBJECT parameter. The VOLUME attribute specifies the volume on which the data set is allocated.
Therefore, the correct answer is C) SPACE. This attribute cannot be changed using the OBJECT parameter.