A pilgrimage is a pilgrims journey.
In monarchies it represented a blood line or family. Kind of like a family crest.
The correct answer is D, "become smaller and more efficient."
Basically:
<span>Some thought it foolhardy to spend money on such a remote area. </span>
<span>The region seemed to have little value (at the time) and was remote and hard to defend. </span>
<span>Secretary of State Seward, who had long favored expansion, argued that the nation's strategic interests favored the treaty. </span>
<span>He was committed to the spread of American influence throughout the Pacific as a means of enhancing the nation’s trade and military standing. </span>