The molecular data indicate that the globin gene family __________.

• A. has two distinct evolutionary lineages, originating from an ancestral alpha-globin gene and an ancestral beta-globin gene
• B. arose through convergent evolution, where genes of different ancestry become similar over time because they have the same function
• C. evolved from a common ancestor of the alpha- and beta-globin genes but that myoglobin and leghemoglobin arose from a different ancestor
• D. evolved through exon duplication
• E. evolved from a common globin gene ancestor that gave rise to both alpha- and beta-globin genes as well as myoglobin and plant leghemoglobin