Given the following information for Janet's Restaurant, what is the direct labor time variance? $900810$ Actual wait staff hours worked Standard staff hours for meals served Standard staff pay rate per hour Actual staff pay rate per hour $$8\mathrm{.}00$ $$9\mathrm{.}00$ O a$.$ $$900$ unfavorable O b$.$ $$70$ unfavorable O c$.$ $$(720)$ favorable Od$.$ $$720$ unfavorable $27$