in the absence of other information, all soil in an excavation should be treated as if it is what soil…

in the absence of other information, all soil in an excavation should be treated as if it is what soil type?\ntype a\ntype b\ntype c\nsolid rock
Answer
Brief Explanation:
In the absence of other information, soil in an excavation is treated as Type C soil. Type C soil has the least stable characteristics among common soil - types for excavation purposes.
Answer:
C. Type C