Here are afew things, Under water warfare sub, the chronometer, and the toilet.
A Historian would look for a primary source (option d. ) - the definition of a primary source is that it was written at the time of the event, and not later (this is the secondary choice).
I believe that it is B however, I'm not positive.
Answer:
The answer is B damages from natural disasters
Explanation:
I got it correct on edge. 2020
Please mark me brainliest!
