Answer:
The central idea of this passage is:
A. Large numbers of Elizabethans died from illness and disease.
Step-by-step explanation:
The central idea of the passage can be found at its beginning, in the sentence "Perhaps the most difficult thing to come to terms with is the scale of death." The paragraph will, from that sentence on, provide evidence concerning the incredible number of deaths caused by different diseases - such as malaria and the flu - in Elizabethan England. That means the rest of the paragraph is supporting the central idea.