Please help me, I'm so lost Read the passage.

Apostrophes

The apostrophe is a widely misused punctuation mark. In proper usage, the apostrophe indicates either a possessive case or where a letter or letters have been removed. An apostrophe is used to indicate a plural in only one special case—when there is a lowercase letter that is plural, such as in the phrase mind your p’s and q’s.

Select the sentence that violates the guidelines for apostrophes.

My brother's dog is very small and very bouncy. She's funny when she gets excited. She runs around in circle's, trying to run and jump at the same time. It's hilarious to see her do this because she ends up doing flips.