Choose the correct sentence.
In an area devoid of volcanic activity:
A. discovery has been made by a team of scientists from the University of California that a fragment of the Swiss Alps seems like it came from a depth as far down as 415 miles.
B. discovery was made by a team of scientists from the University of California who found a fragment of the Swiss Alps that seems like it had come from a depth of as much as 415 miles.
C. team of scientists from the University of California have discovered a fragment of the Swiss Alps that has seemingly come from a depth of as great as 415 miles.
D. team of scientists from the University of California has discovered a fragment of the Swiss Alps that seems to have come from a depth as great as 415 miles.
E. team of scientists from the University of California has made the discovery of a fragment of the Swiss Alps that had seemingly come from a depth as far as 415 miles.