Which of the planets did the team of astronomers study for their report?

what is the antecedent of the interrogative pronoun which?

astronomers
report
team
planets

Read the passage. (1) queen victoria of england remained in mourning for several years after the death of her husband, albert. (2) victoria did not like to be seen in public during that time. (3) she remained in seclusion in the palace and let her son, the prince of wales, represent her at most public functions. (4) she eventually returned to public life after prime minister benjamin disraeli persuaded her to do so. (5) upon her return, victoria showed concern for england’s poor and needy, which endeared her to her subjects. which is the most effective way to vary the sentence patterns in the passage? lengthen sentence 5. start sentences with different parts of speech. invert most of the sentences. combine sentences 3 and 4.