Herbert Hoover believed that the government should not intervene in the affairs of American citizens because they got themselves into their own financial mess so they needed to get themselves out of it. This theory was called rugged individualism.
For the answer to the question above, I believe the answer among the choices that you have given is multiple choice letter D. <span>Africans and Europeans shared immunities to Old World diseases.
I hope my answer helped you. Have a nice day!</span>
The first head is the party in the electorate. This is who the supporters of your party are. They don't have to be actual members of the party, it's enough that they publicly speak that they support you and will vote for you and this is a huge amount of voters because these are the common people who don't deal with politics.
The second head is the party as an organization. This is the classic company like organization with staff, headquarters, laws and legislation, taxes, and similar things. The goal of the organization is to win the elections and they help on a state, national, and local level with things like campaigning and other important aspects of politics.
The third head is the party in government. These are party members who are members of the congress and although they may disagree with some party policies, they are in general the spokespeople for their party and represent it and its values. They are the people who vote on legislation and the budget and similar things.
I believe the answer is A.