Final answer:
The information provided is insufficient to accurately determine how many people are arrested according to Mary in Act 2, as it requires specific context from a play or book that is not included. Reviewing the actual text where Mary mentions the arrest count is necessary for an accurate answer.
Step-by-step explanation:
The question asked by the student refers to a specific event in a literary work rather than an actual event. Unfortunately, the textual excerpts supplied do not provide information about how many people are arrested according to Mary in Act 2. Since the event concerning Mary's mention of an arrest count is likely from a play or a book that is not specified here, without the proper text or context, it's not possible to provide an accurate answer. To discern how many people are arrested according to Mary in Act 2, one would need to consult the specific play or book from which the Act and character are drawn.
It is suggested for the student to review the work in question—likely a play based on the context referred to as 'Act 2'—and specifically the scenes involving the character Mary. The student should look for dialogue or narrative providing the answer, as this will likely be the part of the text where the number of people arrested is stated.