Answer:
Meredith can hold the university responsible for this incident.
Explanation:
Meredith was making a peaceful petition, which is protected by the First Amendment. In addition, the First Amendment defends free speech, which means that Meredith can defend the recreational use of marijuana, without being impeded. However, Meredith was prevented from making her petition within the university campus and this infringed on her right, so she can hold the university responsible for it.
The children would be the reflexive pronoun.
