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.
They use simple emotion words like the dog was sad that the little boy went to school or the baby was happy when the mother played peek a boo with her to make her laugh
I think the best word would be Helpless
