A) \( \Large \frac{n}{2} \) |
B) \( \Large \frac{1}{3} \left(2n+1\right) \) |
C) \( \Large \frac{1}{6} \left(2n+1\right) \) |
D) \( \Large \frac{n}{3} \) |
B) \( \Large \frac{1}{3} \left(2n+1\right) \) |