
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
Assume all 7-digit whole numbers can be telephone numbers, but now the first digit cannot be anything from 0 through 3. Define the fraction of these telephone numbers that start with the number 4 and end with the number 5.
A) $\frac{1}{60}$
B) $\frac{1}{70}$
C) $\frac{1}{80}$
D) $\frac{1}{90}$
E) $\frac{1}{100}$

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