For me, the answer is letter D.
Only choice D has the technical words associated to geography. The rest of the choices contain common words that any mundane could use. But choice D talks about geology itself in the ocean which is highly influenced by drilling and mining. Knowledgeable readers would understand this because drilling and mining require workers to tap into the geological rocks deep beneath the ground which may cause a significant alteration in the oceanic geology.
his main claim is to free the african americans from slavery and everything else in his speech is to support his claim
B) Ants look creepy with their weird eyes.
This sentence is out of place because although the rest of the passage is formal and informative, this one is informative and does not offer real fact about the ants.