The past demand data shown below can be regarded as stationary.

$\backslash$table$[[$Month$,$Demand$],[$January$,50],[$February$,55],[$March$,59],[$April$,45]]$

What is the forecast for March found by the exponential smoothing method with a smoothing constant of $0\mathrm{.}4?$

a$.35\mathrm{.}6$

b$.77\mathrm{.}2$

c$.62\mathrm{.}3$

d$.52$