The task in the image asks to use the digits 3, 5, 1, 2, and 4 to form the greatest possible number. To create the greatest number, we arrange the digits in descending order.

The digits in descending order are: 5, 4, 3, 2, 1.

Thus, the greatest number that can be made is 54,321.

Among the given options, the correct answer is 54,321.

Would you like any more details or have further questions?

Here are 5 related questions to think about:

1. What would be the smallest number you could make with these digits?
2. What is the second-largest number that can be formed from these digits?
3. How many different five-digit numbers can be made using all these digits?
4. What is the sum of the digits in the greatest number?
5. Can you make an even number using these digits?

Tip: When arranging digits to form the largest number, always start by placing the largest available digits first.