
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
The villages \( P, Q, R \) and \( S \) are situated, not necessarily in that order, on a long straight road. The distance from \( P \) to \( R \) is \( 75 \mathrm{~km} \), the distance from \( Q \) to \( S \) is \( 45 \mathrm{~km} \) and the distance from \( Q \) to \( R \) is \( 20 \mathrm{~km} \). Which of the following could not be the distance, in \( \mathrm{km} \), from \( P \) to \( S \)?
A 10
B 50
C 80
D 100
E 140

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