
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
Let integers $c$ and $d$ have their base $10$ representations consisting of $3$ consecutive $7$s and $3$ consecutive $4$s, respectively. What is the sum of the digits of the product $7cd$?
A) 24
B) 27
C) 28
D) 30

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