Planning Systems, Has Forecast the Following Unit Sales and Production

Multiple Choice

Planning Systems, has forecast the following unit sales and production for the next year, by quarter: A finished unit requires one unit of material A and two units of material B. There should be enough material on hand at the end of each quarter to meet 20% of the next quarter's production needs. There are no work-in-process inventories.
How much material B must be purchased in quarter 1?

A) 264
B) 196
C) 204
D) 256