Ageologist finds an area of undisturbed sedimentary rock the lowest layer is most likely the question 3 options: newest oldest radioactive superposition

The undistributed sedimentary rock which has been found by the geologist has the oldest layer at the lowest layer or the bottom of the rock.

Option B

Explanation:

The sedimentary rocks are formed by the sedimentation process that is the layer of rock gets deposited over the other layer of rock within due time. The rock that is formed will definitely have its first layer at the bottom, above which all other layers are sedimented and so the lower layer is the oldest one.

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c) both a and b.