_The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?$?

• A. High albedo of clouds, low albedo of water
• B. High albedo of clouds, high albedo of water
• C. Low albedo of clouds, low albedo of water
• D. Low albedo of clouds, high albedo of water