The natural soil on which the pavement rests and to which the entire load of structure is ultimately transferred, is known as the

The natural soil on which the pavement rests and to which the entire l

1.	The natural soil on which the pavement rests and to which the entire load of structure is ultimately transferred, is known as the
A.	base of road
B.	sub-base of road
C.	sub-grade of road
D.	all of these
Answer» D. all of these