A rectangular patio roof has a drainage area of 2,000 sq ft. According to standard trade design rules requiring 1 sq in of downspout cross-sectional area per 100 sq ft of roof area, what is the minimum number of 3-inch by 4-inch rectangular downspouts required?
- A2 downspouts
- B4 downspouts
- C6 downspouts
- D8 downspouts