The text compares a master student preparing for a test to:

What does a most-favored-nation (mfn) status mean? a country pays the same tariffs as those paid by all mfn countries. a country has a special exemption from all tariffs in the united states. a country has special licensing agreements with u.s. corporations. a country is exempt from product standards that make it expensive for goods to be imported.

The biggest component / ingredient of summer time smog is

Which choice best describes how your answer compares to the sample