The Following Numbered Sets of Characters Each Represent a Distinct

Multiple Choice

The following numbered sets of characters each represent a distinct group of organisms:
1. three toes per foot, feathers, cold-blooded, no finger adaptations
2. three toes per foot, body hair, warm-blooded, opposable thumbs
3. three toes per foot, feathers, warm-blooded, no finger adaptations
4. three toes per foot, body hair, warm-blooded, 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 youngest group? (Hint: the more primitive characters are cold-bloodedness, feathers, and no finger adaptations.) "

A) 1, 2, 3, 4
B) 4, 2, 3, 1
C) 1, 3, 4, 2
D) 2, 1, 4, 3