In which sentence from Black hole beginnings is a cause underlined

analyze the map below and answer the question that follows.

what does the map above tell us about the endemity of typhoid fever?

a.

there is greater occurrence of the disease in the western hemisphere.

b.

there is greater occurance of the disease in the northern hemisphere.

c.

countries located in equatorial regions are more likely to have incidents of typhoid fever.

d.

typhoid fever is more rampant among caucasian populations.

i need more info to answer

italy:

classic, nostalgic, romantic and beautiful. no place better than italy or sicily.