You want to ensure that the Physical Mapping Design cannot be modified even if the Logical Design of the Mapping is changed. What sequence of steps must you follow to achieve this? (Choose the best answer) 

Answer options:

A. Go to the Physical tab, select the Fixed Design check box of the Physical Mapping Design.
B. Go to the Physical tab, select the Is Frozen check box of the Physical Mapping Design.
C. Go to the Physical tab, select the Read-only check box of the Physical Mapping Design.
D. Go to the Physical tab, deselect the Modify check box of the Physical Mapping Design.

C

(https://docs.oracle.com/middleware/1212/odi/ODIDG/mappings.htm#ODIDG1560)