
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
Seven friends were sitting in a row at a concert with seats numbered from 1 to 7. During the interval, Alice went to get snacks. Upon returning, she found that Ben moved one seat to the right, Cara moved two seats to the left, Dan and Ella switched seats, Fiona moved three seats to the right, and Grace stayed in her seat. Alice found herself sitting in the middle seat when she returned. In which seat was Alice originally sitting?
A) 3
B) 5
C) 6
D) 7

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