Can I please get help with this? This is for my US History class. :)

I would go with either a or d but mostly d because it's good to be formal

it provided for selection of government employees through competitive examinations. it also made it unlawful to fire or demote covered employees for political reasons or to require them to give political service or payment, and it set up a civil service commission to enforce the law.

explanation:

b toward the volcano.landward. the landward side of something is the side nearest to the land or facing the land, rather than the sea.