
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
Carol and David have a rectangular array of numbers with $50$ rows and $60$ columns. Carol adds the numbers in each row. The average of her $50$ sums is $C$. David adds the numbers in each column. The average of his $60$ sums is $D$. Find the value of $\frac{C}{D}$.
A) $\frac{4}{5}$
B) $\frac{5}{4}$
C) $\frac{6}{5}$
D) $\frac{5}{6}$

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