Sedimentary layer A lies above sedimentary layer B, and both are ...

[Charlie]

Sedimentary layer A lies above sedimentary layer B, and both are cut by an igneous dike, C. Therefore, the order from oldest to youngest is
 a. A, B, C.
  b. C, B, A.
  c. B, A, C.
  d. none of these.

Question 2

Sedimentary layer A is found above sedimentary layer B, and the two are separated by a horizontal layer of ash, C. Therefore, the order from oldest to youngest is
 a. B, C, A.
  b. C, B, A.
  c. A, C, B.
  d. none of these.

[FergA]

Answer to Question 1

c

Answer to Question 2

a

[Charlie]

Thanks for the timely response, appreciate it

[xiazhe]

Excellent