I suggest you to go with first one a. there was heavy damage only within a mile of the bomb's impact. There're no closer description than that.
I believe B.<span>The U.S. lent military supplies in exchange for bases.</span>
the correct answer is a joint committee.
Some of the responsibilities of vassals for the lord included: Maintain the Lord's manor...Watch over day-to-day activities...And occasionally help advise the king on simple matters of the land.