The bolded pronoun in the given sentence is the word "which". This pronoun is an example of an interrogative pronoun. Interrogative pronouns are pronouns that are used to introduce a question. The antecedents of interrogative pronouns are unknown because it is what is being asked in the sentence that is missing.
I need a pic so I know what the story is
I'VE READ THIS IT'S A GREAT BOOK!
Where is the chart? Please attach it!
<span>A) We cannot walk alone.
I would also recommend that next time you put some spaces between the question and answers next time, it makes it very hard to read. </span>
