What is the most efficient thought for the phrase 'Jon and Sara will not both be elected'?

What is the most efficient thought for the phrase 'Jon and Sara will not both be elected'?

• A. At least one is elected
• B. Exactly one is elected
• C. At most one is elected
• D. Neither is elected

Answer: (C)

The phrase describes a limit on how many of the two can be elected: they cannot both win. The concise way to think about this is “at most one” is elected. That means zero or one person can be elected, but not both. This fits because it allows neither is elected (zero) and exactly one is elected (one), but it rules out the scenario where both are elected. The other options would imply that at least one is elected (which allows both), or that exactly one is elected (which excludes the neither case), or that neither is elected (which excludes the exactly-one case).

The phrase describes a limit on how many of the two can be elected: they cannot both win. The concise way to think about this is “at most one” is elected. That means zero or one person can be elected, but not both.

This fits because it allows neither is elected (zero) and exactly one is elected (one), but it rules out the scenario where both are elected. The other options would imply that at least one is elected (which allows both), or that exactly one is elected (which excludes the neither case), or that neither is elected (which excludes the exactly-one case).