B) imports
The Townsend acts taxed imports, such as tea, they wanted to receive revenue from colonists.
Least common multiple (LCM) of 10 and 20 is 20.
I think is the corps of exploration
In short, Germany was close to being defeated, and America wanted to be part of the post war carve up (when territory was divided). The US was supplying war materials to the Allies and could not do so while maintaining complete neutrality. There was also the sinking of the British ship Lusitania which angered the US. Also, the Zimmerman telegram.
