
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
Four $\text{A's}$, three $\text{B's}$ and three $\text{C's}$ are placed in the nine spaces of a 3x3 grid so that each row and column contains one 'A', and no more than one 'B' or one 'C'. If 'A' is placed in the upper left corner, how many arrangements are possible?
A) 1
B) 2
C) 3
D) 4
E) 5

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