The problem in the image is asking for the number of ways 7 people can sit in a circle, which is a question about circular permutations.

The formula for the number of ways to arrange $n$ people in a circle is: $(n-1)!$ In this case, $n = 7$, so the number of circular permutations is: $(7-1)! = 6! = 720$

Thus, the correct answer is 720 cara.

Would you like more details or have any questions? Here are some related questions you might find useful:

1. How does the formula for circular permutations differ from linear permutations?
2. What is the reason for subtracting 1 in circular permutation problems?
3. How can we generalize this formula for groups of different sizes?
4. How would the answer change if the seating arrangement had restrictions, like some people must sit next to each other?
5. Can you apply this concept to other scenarios, such as rotating objects?

Tip: In circular permutations, the order matters but the starting point does not, which is why we use $(n-1)!$ instead of $n!$.