
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
At Stellar Hospital, in a particular year, the multiple-birth statistics were such that sets of twins, triplets, and quintuplets accounted for $1200$ of the babies born. There were twice as many sets of triplets as sets of quintuplets, and there were twice as many sets of twins as sets of triplets. Determine how many of these $1200$ babies were in sets of quintuplets?
A) 315
B) 316
C) 317
D) 320

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