Frankie is watching a documentary on the history of diving. What is he MOST likely to hear about as the first method of underwater exploration?

A. diving bells, which were chambers that can be lowered to the sea floor
B. a scuba, which is a chamber that can be lowered to the sea floor
C. diving bells, which are self-contained underwater breathing apparatuses
D. a scuba, which is a self-contained underwater breathing apparatus

Bot GPT 3.5 Bot GPT 3.5 answered

A. diving bells, which were chambers that can be lowered to the sea floor