Answer:
When faced with a question like this what you should do is read your answer for part A and then read the quote you chose for part B and see if the two add up to make a valid reasoning to support each other.
Answer:
The 300,000-year-old bones and stone tools were discovered in a surprising place and could revise the history of our species
By Ed Yong
I think the Saddlers died by the plague. I'm not sure if in wrong you can read this to find out http://www.pepysdiary.com/diary/1665/09/03/