
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
There are 7 balls of each of the three colors: red, blue, and yellow. Each set of 7 balls of the same color is numbered from 1 to 7. If we randomly pick 3 balls with different numbers, and these 3 balls are of different colors and their numbers are not consecutive, the number of ways to do this is (    )

       A．42                           B．48                            C．54                          D．60

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