The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are________________?

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The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are________________?

1) Water pressure
2) Self weight
3) Uplift
4) Pressure due to earthquake
The correct answer is
A. Only (2)
B. (1), (2) and (3)
C. (1), (2) and (4)
D. (1), (2), (3) and (4)