Impeding - to delay or prevent by obstructing it/them.
so your answer is B. Obstructing; slowing down.
Can you type up the question
Because he was a segregationist and supported a return to Africa by African american. <span />
The correct answer here is the second option.
Romanticist advocated the idea that each nation had unique abilities and these tendencies were later grouped in what is known as Romantic nationalism or national romanticism. For them the country is a organic unity of people that the nation is made of and their language, culture, religion and the customs of the nation.