Take a look at the following graphic organizer.
Which phrase best fills in the blank in this graphic
organizer to describe the topic of the claim?

Claim: Hybrid cars are not as helpful to the environment as some think, because making the
cars still creates pollution
Therefore, the only
environmentaly safe mode of transportation is walking or biking

a. Manufacturing of hybrid cars
b. Protecting the environment
c. Walking as a forms of transportation
d. Environmentally safe transportation