The Progressive Party (or Bull Moose Party), created by former Republican president Theodore Roosevelt, was splinter party.
D) Splinter Party
Explanation:
The Progressive Party or the Bull Moose party was created by the republican president Theodore Roosevelt and it was a Splinter Party. A splinter party is one which separates into two ways when some kind of conflict or disagreement occurs among the political policies or ideology.
Therefore, Splinter party is the one which separates away from the one major party and here the major party was progressive party and the other party was Bull Moose party which was separated due to disagreement.
