Archaeologists found on Thera indicating . A. toolsan industrial civilization
B. human remainsevidence of a natural disaster
C. frescoesa high standard of living
D. all of the above

B. human remainsevidence of a natural disaster

Explanation:

One of the remarkable archaeological discoveries in Greece was the discovery of an old city on the island of Thera to. The South of the Aegean. The city was destroyed by a volcanic eruption, along with its over 18,000 inhabitants.

Therefore, Archaeologists found HUMAN REMAINS on Thera indicating EVIDENCE OF A NATURAL DISASTER

i think it was   tsar alexander ii

c or d both can be the answer