Five friends, A, B, C, D and E, are of different ages. E is older than only two persons. D is younger than only one person. If A is the eldest among all, which of the following conclusions is definitely correct?
1
C and D are the two youngest persons.
2
C and E are the two youngest persons.
3
B and E are the two youngest persons.
4
C and B are the two youngest persons.