Biology Which of the following is the empirical formula of chlorophyll b? Options:A. C55H70O5N4MgB. C55H72O6N4MgC. C55H70O6N4MgD. C55H72O5N4MgView AnswerC. C55H70O6N4Mg Continue Reading Previous: _________________ cells of phloem are directly involved in transport of organic solutes?Next: Exposure to low temperature stimulates plants to flower. This is called___________?