
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
What is the least possible value of
\[
(x+1)(x+2)(x+4)(x+5)+2164
\]
where \( x \) is a real number?
A) 2160
B) 2161
C) 2161.75
D) 2162
E) 2163

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