Which of the Following Are Commonly Used to Study Phylogeny

Multiple Choice

Which of the following are commonly used to study phylogeny?

A) Whole genomes because they are easy to obtain.
B) Segments of membrane proteins because the proteins are encoded by DNA.
C) Specific mRNA chloroplast sequences because they are found in the genomes of all living organisms.
D) Small ribosomal subunit (SSU) RNA because it is found in the genomes of all living organisms.
E) None of these answers are correct.