It would be "(D) British trade and defensive treaties with Texas," that was not a cause of delaying the annexation of <span>Texas, since the delay mostly had to do with the North being upset with the idea of adding another slave state to the Union. </span>
Its pretty sure that it's , transportation the first one sorry if I'm wrong
The immigration station on the west coast where Asian immigrants, mostly Chinese gained admission to the U.S. at San Francisco Bay. Between 1910 and 1940 50k Chinese immigrants entered through Angel Island. Questioning and conditions at Angel Island were much harsher than Ellis Island in New York.
I hope that helps.
