A reduction factor $$C_r$$ to load carrying capacity for a long rcolumn of effective length $$L_e$$ and width b is applied as eobtained from following expression:

A

$$ 1 - \frac{L_e}{24b} $$

B

$$ 1.25 - \frac{L_e}{36b} $$

C

$$ 1.25 - \frac{L_e}{48b} $$

D

$$ 1.5 - \frac{L_e}{60b} $$