Third parties have been successful in all of the following roles EXCEPT:
A supporting a specific issue
B. forming as protest groups
C. impacting election results
D. becoming a dominant party

D. becoming a dominant party

Explanation:

Third parties have been unsuccessful in becoming a dominant party because they often represent an ideology that is considered too radical by the mainstream parties and their constituents. They fail simply because the American political system is designed to support only two major parties. As well as this, 48 of the 50 states employ a winner-takes-all system for electoral votes.

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a peace conference held after the surrender of japan

an international conference held near the end of world war ii

a meeting of the victorious nations after the defeat of germany

a summit meeting between the united states and the soviet union

originally he was supposed to be dead but they wanted to continue the series so they brought him back to life.