Answer:
b. It was the Democratic slogan for the presidential election of 1844.
Step-by-step explanation:
Polk was the flag bearer of the democratic party in the election of 1844. This was a period when U.S was conflicting with Britain over the ownership of the Oregon territory.
Polk named the struggle; 'fifty four, forty or fight' to mean, the location of Oregon as a whole, which, if not given to the U.S would result to a fight to get it.
This, is the slogan that made the democratic party acceptable among the people leading to their subsequent victory in the 1844 election.