Read the paragraph.
1] Our house was once a stop on the Underground Railroad. [2] It was common for an enslaved person to stop ther
on their way to the North. [3] The Underground Railroad were a network of hiding places. [4] The cellar beneath our
house has a secret door that was installed to trick slave catchers.
Which sentence has a pronoun-antecedent agreement error?
sentence 1
sentence 2
sentence 3
sentence 4