
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
Costa is building a new fence in his garden. He uses 25 planks of wood, each of which is \(30 \mathrm{~cm}\) long. He arranges these planks so that there is the same slight overlap between any two adjacent planks. The total length of Costa's new fence is \(6.9\) metres. What is the length in centimetres of the overlap between any pair of adjacent planks?

A 2.4    
B 2.5    
C 3    
D 4.8    
E 5

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