The correct answer is (d.) a place where Muslim philosophers met to contemplate life. The House of Wisdom was actually a major intellectual center for well-known scholars during the Golden Age that made many remarkable contributions to the diverse fields.
The Zimmerman Note was a note sent from Germany to Mexico asking Mexico to align itself with German interests. If the US entered the war and if Mexico opposed the US, the reward would be Arizona California and one other state -- perhaps Texas. It was a major contributor to the declaration of war on Germany by America.
The sinking of the Lusitania was another major event. When the Lusitania was sunk, 2000 people were affected.
Submarine warfare really aggravated the US. Many merchant ships were sunk.
Answer: B
...represented differences of opinions over which issues?
Answer: Taxation and representation
Hope this helps :)
I took the test with this question, and this was answer.
The reason actually had little to do with Somaliland (which is a relatively peaceful and stable country) but with the fear of other countries that this will cause more chaos in the neighbouring Somalia and maybe encourage other places in Africa to split and this would cause more wars and conflicts. <span />