What Is the Composite C Value for the Following Drainage

Multiple Choice

What is the composite C value for the following drainage area for a 10-year storm recurrence interval?Drainage area: 0.25 acres of residential lots with 40% imperviousness (C = 0.49) 0.25 acres of lawn with 0.95% slope with 0% imperviousness (C = 0.22) 0.10 acres of impervious pavement (C = 0.95)

A) 0) 20
B) 0) 45
C) 0) 55
D) Not enough information provided