Sande Corporation makes a product with the following standard costs: Direct Materials Direct Labor Standard Quantity or Hours 5.4 Kilos 0.2 Hours Standard Price or Rate $ 7.50 $ 20.00 per kilo per hour The company reported the following results concerning this product in June. Actual Output Raw materials used in production Actual direct labor hours Purchases of raw materials Actual price of raw materials Actual direct labor rate 3,600 units 19,250 kilos 970 hours 46,700 kilos $ 7.60 $ 22.50 per hour per kilo a) What was materials price variance for November? b) What was materials quantity variance for November? c) What was the labor rate variance for November? d) What was the labor efficiency variance for November