Which of the Following Statements Is TRUE Regarding Phylogenetic Trees

Multiple Choice

Which of the following statements is TRUE regarding phylogenetic trees?

A) Phylogenetic trees are only constructed based on morphological data; molecular data (even for viruses) is never used in the construction of such trees.
B) As synapomorphies only occur for morphological characters, molecular sequence synapomorphies cannot be used to construct phylogenetic trees.
C) Both morphological and molecular synapomorphies can be used to construct phylogenetic trees.
D) Phylogenetic trees based on molecular sequence data always assume that the rate of evolution varies between different organisms.
E) Phylogenetic trees are always constructed based on morphological or molecular sequence datanever both.