Barb Bubble top produces bangles. Each bangle requires 25lbs of bronze, which should cost $16 per lb. In August, BB purchases 12,000 lbs of bronze at $15 per lb. In the month, 41,000 bangles were made, and 11,000 lbs of bronze were used, which is false of BB's material variances?

A. the company should have spent $164,000 on materials

B. Bronze inventory increase by $ 15,000

C. Material quantity variance is $ 18,000 unfav

D. materials price variance is $12,000 unfav