Question

Mark's aunt is researching the effect of car pollution on smog levels in southern California. She wants to learn more about this. Which keyword(s) should she type into an Internet search engine?

A.
car research
B.
aunt
C.
southern California levels
D.
car pollution in California

Answer 1

D) Car pollution in California

Step-by-step explanation:

Answer 2

D. car pollution in California

Step-by-step explanation:

The other ones don't provide enough info.