Question

James wants to know more about how vaccines work. He should look

A
On a map showing where people can get vaccines
'B
In a science book, in a chapter called "Staying Healthy"
C
In a dictionary, under the word "disease"
D
On an Italian school calendar

Answer 1

B in a science book in a chapter called “staying healthy”
its the most reliable source

Answer 2

B. In a science book, in a chapter called "Staying Healthy"