
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 cost $C$ of sending a parcel post package weighing $P$ kilograms, where $P$ is an integer greater than or equal to 2, is $20$ cents for the first kilogram and $5$ cents for each additional kilogram. Determine the cost formula for $C$.
A) $C = 20P + 5$
B) $C = 20 + 5P$
C) $C = 20 + 5(P-1)$
D) $C = 25 + 5P$
E) $C = 15 + 5(P-1)$

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