384 : ? :: 216 : 63

Here is a brief explanation of each option:

• A. 128: This is the correct answer.
• B. 124: This is not the correct answer because 124 is not a factor of 384.
• C. 112: This is not the correct answer because 112 is not a factor of 216.
• D. 192: This is not the correct answer because 192 is not a factor of 384.