The most appropriate if-then statement that the english sentence represents is: B. If a person is 18 years old or older, then the person can vote in Federal elections.
What is Federal Election?
Federal election can be defined as the way in which a person vote for a preferred.
For a person to be eligible to vote during election, such person must be 18 years old or older.
The if -then statement is: If a person is 18 years old or older, then the person can vote in Federal elections.
Therefore the correct option is B.
Learn more about federal election here:https://brainly.com/question/13474496
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