Which powers are solely at the state level? expressed implied concurrent reserved'

definitely a for sure. ill see and update if i get the answer

he sent troops to protect the students as they entered the school.

its main object was the establishment of "settlement houses" in poor urban areas, in which volunteer middle-class "settlement workers" would live, hoping to share knowledge and culture with, and alleviate the poverty of, their low-income neighbors.

letter a is the answer