While Albert was hiking in the mountains, he found many fossils similar to the one below. Albert was 8,000 ft. above sea level, and the fossil was found on the side of the mountain.

Based on his observation, what would be the most logical inference Albert could make about the environment where he was hiking?
A.
The area was once covered in water and was home to aquatic creatures.
B.
Fish moved out of the water and made their way up the mountain many years ago.
C.
Fish currently live on this mountain.