4. In sentence 4, the writer wants to provide further evidence to support the claim presented in the sentence. Which
version of the sentence would best achieve this purpose?
a. It provides ample support as it is written
b. This development is not entirely surprising, given evidence showing that e-cig use can lead to chronic
respiratory symptoms and more severe asthma in teenagers, says pediatric pulmonologist Sharon McGrath-
Morrow of Johns Hopkins University School of Medicine in Baltimore.
c. This development, which was published in a medical journal, is not entirely surprising, given evidence
showing that e-cig use can lead to chronic respiratory symptoms and more severe asthma in teenagers says
pediatric pulmonologist Sharon McGrath-Morrow.
d. This development is not entirely surprising to anyone who has a teenager, given evidence showing that e-
cig use can lead to chronic respiratory symptoms and more severe asthma in teenagers says pediatric
pulmonologist Sharon McGrath-Morrow.
e. This development is not entirely surprising, given evidence showing that e-cig use can lead to chronic
respiratory symptoms and more severe asthma in teenagers says pediatric pulmonologist and mother of
three teenagers Sharon McGrath-Morrow.

What is the answer ?