Question ID:PT44 S2 Q6 Passage:Chai:  The use of the word "tree" to denote both deciduous and coniferous plant forms, while acceptable as a lay term, is scientifically inadequate; it masks the fact that the two plant types have utterly different lineages.Dodd:  But the common name highlights the crucial fact that both are composed of the same material and have very similar structures; so it is acceptable as a scientific term. Stem:The conversation provides the strongest grounds for holding that Chai and Dodd disagree over whether Correct Answer Choice:BChoice A:it is advisable to use ordinary terms as names for biological forms in scientific discourse Choice B:using the same term for two biological forms with different lineages can be scientifically acceptable Choice C:both deciduous and coniferous plant forms evolved from simpler biological forms Choice D:it is important that the lay terms for plant forms reflect the current scientific theories about them Choice E:biological forms with similar structures can have different lineages