
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
A series of linked rings, each $2$ cm thick, are hanging on a peg. The top ring has an outside diameter of $30$ cm. Each subsequent ring has an outside diameter that is $2$ cm smaller than that of the ring above it. If the smallest ring has an outside diameter of $4$ cm, what is the total distance from the top of the top ring to the bottom of the bottom ring?
A) 200 cm
B) 212 cm
C) 214 cm
D) 220 cm

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