In this puzzle, we have three circles, each containing a range of numbers:

First Circle (Circle A): Contains numbers from 1 to 10.
Second Circle (Circle B): Contains numbers from 11 to 20.
Third Circle (Circle C): Contains numbers from 21 to 30.
The objective is to determine the correct number based on this pattern. The pattern is that each circle represents a sequential range of numbers, increasing by 10 with each subsequent circle.

Let's break down the reasoning step by step:

Circle A (1-10): This circle represents the numbers from 1 to 10.
Circle B (11-20): The next circle represents numbers from 11 to 20, continuing the sequence.
Circle C (21-30): The third circle continues this pattern, containing numbers from 21 to 30.
To find the correct answer, we look for a number that fits into the third circle's range (21-30). From the given options:

A) 12
B) 18
C) 25
D) 28
Only option D, 28, falls within the range of numbers in Circle C (21-30).

Therefore, the correct answer is D) 28.

This puzzle tests logical reasoning and pattern recognition. By understanding the sequential arrangement of numbers in each circle, we can deduce that the number fitting into Circle C is 28. This type of puzzle helps develop analytical skills and logical thinking, making it both challenging and enjoyable to solve.