R Hamilton has the following credit purchases and credit sales in April:

April 9	Bought from C Charles: Copper goods RM320 less 50% trade discount
April 10	Sold to J Jones: Brass goods RM24, bronze items RM36. All less 25% trade discount
April 11	Sold to N Nelly: Tin goods RM70, lead items RM230. All less 33 1/3 trade discount.
April 16	Bought from A Adams: Tin goods RM400 less 40% trade discount
April 23	Sold to T Thomas: Tin goods RM50, brass items RM70, lead figures RM80. All less 20% trade discount
April 30	Bought from M Macy: Brass figures RM100 less 50% trade discount

What are his total purchases in the Purchases Day Book?

A.

RM855

B.

RM450

C.

RM820

D.

RM405