How does the passage expand on the central idea
"large numbers of Elizabethans died from illness and
disease"?
Serious though influenza and malaria are, they are not
the biggest killers of the age. That title belongs to the
plague or "pestilence." No one knows precisely how many
die over the course of the reign but the total is probably
around 250,000. In 1565 the people of Bristol count up
the plague victims for that year and arrive at the figure of
2,070, almost 20 percent of the population. Ten years
later, after another deadly outbreak, they record a further
2,000 fatalities.
- The Time Traveler's Guide to Elizabethan England,
Ian Mortimer
It specifies that malaria was the most dangerous
disease in Elizabethan England.
It clarifies that the plague was the biggest killer in
Elizabethan England.
It explains the causes of illnesses such as
influenza, malaria, and the plague
It lists the ways to avoid falling ill with plague,
influenza, and malaria.

Answer: B