(B) In ferns,the sporangia are produced in clusters known as sori. These sori are typically found on the abaxial (under) surface of the leaves,which a

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(B) In ferns,the sporangia are produced in clusters known as sori. These sori are typically found on the abaxial (under) surface of the leaves,which are referred to as sporophylls. They can be arranged marginally or superficially on the lower surface of the leaf.