Due to recent government incentives to encourage recycling, the standard price of recycled plastic was expected to reduce to $0·40 per kg. The actual price paid by the company was $0·42 per kg and 100,000 baskets were manufactured using 20,000 kg of recycled plastic.<br>What is the materials operational price variance?
A. $2,000 favourable
B. $1,600 favourable
C. $400 adverse
D. $320 adverse