What sparked the questioning of a person’s loyalty to the u. s. government?

Being in war with other countries is what  sparked the questioning of a person’s loyalty to the U.S. government

its c not d   tell me if that´s correct

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.