Choose the topic sentence.
a. In about 25 percent of people, sunlight triggers sneezing because of a link between
the eye's optic nerve and nerves associated with the sneeze response.
b. Light, or the lack of it, affects some people in interesting ways.
c. People who wear contact lenses or take certain medications are often more sensitive
to sunlight.
d. During winter months, some people suffer from seasonal affective disorder, or
feelings of depression due to reduced amounts of light.
Read more:
Which is a good topic sentence? Help writing an essay?