I believe the best answer would be Although or In summary depending if it’s being summarized or not since As a result doesn’t fit in with the after part of the sentence that explains what he did, for instance doesn’t fit the part either for the same reason as why As a result didn’t either.
<em>Although Congress initially declined Lafayette’s services, he was eager to help, so he volunteered to serve free of charge.</em>
<u>Explanation:</u>
In the prior decades Lafayette was conceived, Enlightenment methods of reasoning had <em>motivated the conviction</em> that it was conceivable to change society and the structure of government.
Most Edification masterminds accepted such change was basic for advancement. What's more, presently, in the echoes of news about the <em>American Revolutionary War, it appeared this was not just conceivable, however occurring.</em>
"They flew missions over Germany" is the one <span>contribution of the Tuskegee Airmen during World War II </span>among the choices given in the question. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer has come to your great help.