At what value of saturation does the zero air voids curve in a compaction test represent the dry density?

At what value of saturation does the zero air voids curve in a compact

1.	At what value of saturation does the zero air voids curve in a compaction test represent the dry density?
A.	0%
B.	80%
C.	100%
D.	50%
Answer» D. 50%