Question

read the passage.
supporting biliteracy
there are many good reasons to learn a second language. a second language can improve your understanding of your native language, open the door to new job opportunities, and help you learn about other cultures. yet american students are less likely than european students to study foreign languages in school. to address this gap, several states have begun doing more to encourage biliteracy—the ability to read and write in two languages. california, new york, and illinois are among the states that have passed laws establishing a state \seal of biliteracy.\ a seal of biliteracy shows that a student has achieved proficiency in a second language. supporters of the seals say that they honor the importance of second-language learning. the seals also provide colleges and future employers with evidence of students abilities.
what is the main, or central, idea of the passage?
fewer american students than european students learn a second language, so some states are promoting the study of foreign languages.
although second-language learning is important, students in the united states are less likely than those in europe to learn a second language.

Explanation:

The passage first states the benefits of learning a second language, then points out that American students are less likely to study foreign languages than European students. Finally, it explains that some states (like California, New York, Illinois) are promoting biliteracy to address this gap. The first option includes both the gap (fewer American students learning a second language) and the action taken (states promoting foreign language study), while the second option only focuses on the gap without the action. So the first option is the main idea.

Answer:

Fewer American students than European students learn a second language, so some states are promoting the study of foreign languages.