Betty’s friends threw her a birthday party. Everyone (including Betty) met exactly 3 new people at the party.

When Betty told her mom about the party later, her mom said, “That sounds like fun! How many people were there at the party?”

“I think there were 14, or maybe 15, including me,” answered Betty.

Question: If Betty was right that there were either 14 or 15 people at the party, then which number is correct?

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