What background knowlege would best add to a readers understanding of information in a science textbook about photosynthesis?

A. reflecting on a scene in a TV program that took place in a greenhouse
B. using ideas gained from reading an article about the benefits of house plants
C. remembering facts from an experiment that showed how plants use light energy
D. thinking about pictures taken while visiting the community flower garden

Constructing an argument: in modern american society, the legalization of marijuana continues to be controversial and hotly debated. some people find it contradictory that certain "drugs"—such as tobacco and alcohol—are legalized even though they pose proven health risks, while marijuana, which has many medicinal applications, continues to be illegal by the federal government. what reasons do you think the federal government gives for outlawing marijuana, and do the reasons support the conclusion?