
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system

Five students need to submit their homework to the teacher on a certain day. Each student places their homework on the top of a stack when they submit it, and the teacher grades the homework from the top whenever they have time. The homework assignments are numbered 1, 2, 3, 4, and 5 in the order they were submitted. By noon, it is known that the 4th homework assignment has already been graded. Which of the following sequences could be the order in which the teacher grades the remaining homework assignments in the afternoon?

(1) 5, 2, 3, 1  
(2) 5, 3, 2, 1  
(3) 5, 3, 1  
(4) 3, 5, 1

Present the answer in LaTex format: \boxed{Your answer}
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