The following numbered sets each represent a distinct group of organisms: (1)three toes per foot,cold-blooded,feathers,no finger adaptations (2)three toes per foot,warm-blooded,body hair,opposable thumbs (3)three toes per foot,warm-blooded,feathers,no finger adaptation (4)three toes per foot,warm-blooded,body hair,no finger adaptations Which of the following choices is the MOST likely to represent the order in which these groups would appear on an evolutionary tree,from oldest to most recent?
A) 1, 2, 3, 4 B) 4, 2, 3, 1 C) 1, 3, 4, 2 D) 2, 1, 4, 3