An exponential smoothing model must have a smoothing constant $(\backslash$alpha $)\_\_\_\_\_$ to be roughly equivalent to a moving average model with a seven$-$month moving average.

Question $3$ options:

A$)$

less than or equal to $0\mathrm{.}10$

B$)$

more than $0\mathrm{.}10$ but less than or equal to $0\mathrm{.}15$

C$)$

more than $0\mathrm{.}15$ but less than or equal to $0\mathrm{.}20$

D$)$

more than $0\mathrm{.}20$