The Following Questions Refer to the Description and Figure 23

Multiple Choice

The following questions refer to the description and Figure 23.1.
Figure 23.1 represents a cross section of the sea floor through a mid-ocean rift valley, with alternating patches of black and white indicating sea floor with reversed magnetic polarities. At the arrow labeled "I" (the rift valley) , the igneous rock of the sea floor is so young that it can be accurately dated using carbon-14 dating. At the arrow labeled "III," however, the igneous rock is about 1 million years old, and potassium-40 dating is typically used to date such rocks. Note: The horizontal arrows indicate the direction of sea-floor spreading, away from the rift valley.
Figure 23.1
-If a particular marine organism is fossilized in the sediments immediately overlying the igneous rock at the arrow labeled "II," at which other location(s) , labeled A-E, would a search be most likely to find more fossils of this organism?

A) B only
B) C only
C) D only
D) B and C
E) C and D