Question

question 1
what was the first pro hockey league called?
a the international professional hockey league
b the national hockey association
c the ottawa hockey association
d the eastern canada hockey association

Explanation:

The first professional hockey league was the International Professional Hockey League. The National Hockey Association was a predecessor to the NHL but not the first pro league, the Ottawa Hockey Association and Eastern Canada Hockey Association were not the first professional hockey leagues.

Answer:

A. the International Professional Hockey League