
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 towns \( P, Q, R \) and \( S \) are connected by roads. A race uses each road exactly once, starting at \( S \) and finishing at \( Q \). How many possible routes are there for the race?
A 10
B 8
C 6
D 4
E 2

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