Select the option that can replace the question mark (?) in the following equation.
2 + 5 ÷ [5 + 8 ÷ (1 + \( \frac{1}{3} \)) - 1] = ?
\( \frac{5}{2} \)
2
\( \frac{1}{2} \)
\( \frac{3}{2} \)
Select the figure that does NOT belong in the following group.