d)<em> music that mimics or suggests the sounds of nature.</em>
Explanation:
Program music is intended to <em>evoke images or to bring the impression of events.</em> Program music is instrumental music from the 19th and 20th century. It aspires to <em>evoke mental pictures and ideas in the thoughts of the listener. In other words — to tell a story, picture a scene, or set the mood. </em>
Trial and error mainly, but I would at least change the settings for night time and maybe change the white balance to make it look normal (so it isn't yellow or blue). It's mainly up to the person to decide what is correct for the exposure time and color balance.