Read these headings from when birds get flu and cows go mad! by john diconsiglio.
1968 another pandemic
1986 don’t eat the meat
1996 a bad burger
1997 when birds get flu
from the headings, the reader can conclude that this section of the text will be sorted by
a. why events took place
b. what events took place
c. when events took place
d. where events took place

explanation:

if you’re a fan of chocolate, every occasion is right for this treat. feeling down? eat some chocolate. celebrating? eat some more. want to show your valentine how special you think your sweetheart is? offer up chocolate!   people have been enjoying chocolate as a food, drink and medicine for thousands of years. the ancient maya and aztecs called chocolate kakaw and used it as medicine. they also made chocolate offerings to their gods. chocolate comes from the cacao (kuh-kow) tree, and its scientific name reflects its history. theobroma cacao translates to “cacao, food of the gods.” these days, chocolate is not just for deities. the treat has become popular around the world.

b is the correct answer