Q$15.$ For the following code, which column will be dropped?

$$ from sklearn. feature$\_$selection import Vardroethreshold

$>>$ X $=[[$e$,2,0,3],[$e$,1,4,3],[$e$,1,1,3]]$

$>$ selector $=$ VarianceThreshold$()$

$>>>$ selector. fit$\_$transform$($x$)$

The default value for the threshold is $0$ Variance Threshold$($threshold$-0\mathrm{.}0))$

Options:

A$.$ The $15$ column

B$.$ The $2$nd column

C$.$ The $3$rd column

D$.$ The $15$ and $4*$ column