Wait did you already get it?
Answer:
The traveled from Washington D.C. to Jackson, Mississippi
Hydrogen bomb...
hope this helps!
B. Disputed ownership of the Kuril Islands is the correct answer and this issue has still not been resolved between the former Soviet Union and Japan. <em>The</em> <em>Kurils</em> are referred to as the Northern Territories in Japan. Recently, in 2018 talks resumed over the territories as they remain in Russian jurisdiction with Japan holding jurisdiction over <em>Iturup</em> and <em>Kunashir</em> the two islands furtherest South.
Many Portuguese explorers created the sea route to India and the Mughal Empire!
I hope I helped! Merry Christmas :P