What type of policy did the u. s. adopt during this time period?

What time period? you didn't include it in the question.

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .

Ithink the answer is a.