Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Traditionally, long day and short day plants are better known as short night and long night plants because they actually flower during periods of continuous darkness. B. The naming of long day and short day plants is traditional and depends on whether they flower during long days or long nights. C. Whether plant is better described in terms of day length or night depends on whether it flowers during the day or during continuous darkness. D. Despite their traditional names, the flowering of what are called long day and short day plants actually depends on the length of continuous darkness rather than on day length.