Answer:
Many Germans immigrated to colonial Pennsylvania because there were few job opportunities in Central Europe.
Step-by-step explanation:
A is not correct because France's invasion didn't influenced badly on the economy of Central Europe at the time being.
B is not correct because the religion didn't played a big role in the immigration of the Germans.
C is correct because the majority of the German immigrants moved to Pennsylvania because the economic situation in Central Europe was terrible, job opportunities were lacking, and there was large scale poverty.
D is not correct because there wasn't German monarchy per se, with Germany still being divided into numerous small kingdoms, thus many local monarchs, not one monarch that influenced all German population.