Why Were Eastern European Jews in the United States Not

Why were Eastern European Jews in the United States not enthusiastic supporters of the Allies in World War I?

A) Many of them had fled anti-Semitic policies in Imperial Russia.
B) They empathised with the plight of the Irish under British imperial rule.
C) Many of them had strong ties to Germany and considered that nation their cultural home.
D) There were strong supporters of an independent Serbia that included Bosnia.