Genent Industries, Inc. $($GII$),$ developed standard costs for direct material and direct labor. In $2017,$ GII estimated the following standard costs for one of their major

$.$products, the $30-$gallon heavy$-$duty plastic container

During July, GII produced and sold $4,000$ containers using $1,000$ pounds of direct materials at an average cost per pound of $$37$ and $475$ direct manufacturing labor hours at

$.$an average wage of $$18\mathrm{.}75$ per hour

The direct material efficiency variance during July is

favorable $$5,000.a$

unfavorable $$5,000.b$

favorable $$7,400.c$

unfavorable $$8,000.d$