Use the Advanced Designer Certificate Assessment project to answer this question. After retaining only records with a quantity greater than or equal to $2000$ units, what was the $4$ week rolling average on total quantity sold for the stock item $84077$ on $2010-11-29?$

$-3097\mathrm{.}5$

$-3318\mathrm{.}38$

$-3809$

$-3732\mathrm{.}75$