<span>Abigail Adams in her letter to John Adams, described the conditions of Boston after the British withdraw from the city by mentioning that 'm</span><span>any buildings have been burned to the ground and will have to be rebuilt.' This has been a result of the continuous firing of cannons the city experienced which also kept the citizens awake. </span>
To do this we need to see the passage of the novel
There are many factors involved in the improvement in the life expectancy such as sanitation, housing, scientific research to cure many diseases and infections, education etc.
Historically it was the nineteenth and early twentieth century when all these improvements were made due to which the mortality rate decreased intensively in early and middle ages.
Answer:
the correct answer would be D
The anwser is "b". I'm not sure but i would go with b
