Garry's Corporation's most recent production budget indicates the following required production:

	October	November	December
Required Production (units)	210,000	175,000	110,000

Each unit of a finished product requires 5 pounds of raw materials. The company maintains raw materials inventory equal to 25% of the next month's expected production needs. How many pounds of raw material should Garry plan on purchasing for the month of November?

A. 893,500

B. 793,750

C. 1,006,250

D. 1,012,500

I know the answer is B, but I'm not quite sure how to get the answer. Thanks in advance! :)