
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
Calculate the value of the expression:
\[
\dfrac{10+(-9)+8+(-7)+6+(-5)+4+(-3)+2+(-1)}{2 - 4 + 6 - 8 + 10 - 12 + 14 - 16 + 18}
\]
A) $0.25$
B) $0.5$
C) $1$
D) $2$

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