Question

before a nation wide election, a polling place was trying to see who would win. which choice best represents a sample? all voters a selection of votes from one part of the nation a selection of male voters a selection of voters from all over the nation

Explanation:

A sample is a subset of a larger population. In this context, a polling place trying to see who would win an election would use a sample. All voters is the entire population. A selection of votes from one part of the nation may be biased. A selection of male voters is also a biased subset. A selection of voters from all over the nation is more likely to be a representative sample.

Answer:

A selection of voters from all over the nation