
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
How many four-digit whole numbers are there such that the leftmost digit is a prime number, the second digit is a non-prime odd number, and all four digits are different?
**A)** 336   
**B)** 448   
**C)** 560   
**D)** 672   
**E)** 784

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