Dog Bone Bakery, which bakes dog treats, makes a special biscuit for dogs. Each biscuit uses 0.75 cup of pure semolina flour. They buy 4,000 cups of flour at $0.55 per cup. They use 3,588 cups of flour to make 4,800 biscuits. The standard cost per cup of flour is $0.54. A. What are the direct materials price variance, the direct materials quantity variances, and the total direct materials cost variance