Choose the correct expression from the following that explains the changing vertical position of a point on the land surface at any time (Surface Uplift – SU, Bedrock Uplift – BU, Deposition – D, Compaction – C, Erosion – E).

• A. SU = BU – D – C – E
• B. SU = BU – D + C – E
• C. SU = BU + D – C + E
• D. SU = BU + D – C – E