Inference from phylogenic tree is:
Species A was probably much larger than any of the other organisms.
What is phylogenic tree?
A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.
What can phylogenetic trees tell us?
A phylogenetic tree can help trace a species back through evolutionary history, down the branches of the tree, and locate their common ancestry along the way.
Hence ,option A is correct
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