Study the given pattern carefully and select the number that can replace the question mark (?) in it.

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Logic: $$\frac {\text{Sum of 3 squares}} {\text{lower half circle}}$$ = Upper half circle

For, 1st

= $$\frac{5 + 6 + 3} {2}$$​​

= $$\frac {14} {2}$$

= 7

For, 2nd

= $$\frac {4 + 3 + 3}{2}$$

= $$\frac {10} {2}$$

= 5

Similarly, for 3rd

= $$\frac {2 + 7 + 3} {3}$$

= $$\frac {12}{3}$$

= 4

Thus, correct option is (b).