The following sentence has a misplaced modifier. Tired of studying and writing research papers, summer vacation came as a relief to the student.

Which revision corrects the error in the sentence?

Summer vacation came as a relief to studying and writing research papers for the student.
Relief to the student came as summer vacation, which was tired of studying and writing research papers.
Summer vacation came as a relief to the student, who was tired of studying and writing research papers.
The student, who was tired of studying and writing research papers, came to summer vacation as a relief.

The answer is Summer vacation came as a relief to the student, who was tired of studying and writing research papers.

Explanation:

there is no poster. if you add a poster then we can answer.

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.