b it is important to make progress
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.
a. Macbeth is trying to pacify Lady Macbeth by organizing the banquet.
d. Macbeth is troubled by the witches' prophecy that Banquo's descendants will become kings.
Answer: A
Explanation: Enough comma but not too many and there is a period to end the sentence.