Which of the following actions are tangible evidence the federal government at work? select all that apply.

Work for the good of the country as a whole. we see tangible evidence of the government at work whenever we see a  coin or dollar bill . we see our armed forces and know that the government is obligated to our safety. we receive mail and read of tariffs on imports and we know that the government works to regulate and maintain the mail system and commerce for the benefit of all the country's citizens.