Given the following relations on the set of all people. Check ALL correct answers from the following lists: (a) a is older than b
A. antisymmetric
B. irreflexive
C. transitive
D. reflexive
E. symmetric
(b) a and b have a common grandparent
A. reflexive
B. symmetric
C. irreflexive
D. transitive
E. antisymmetric
(c) a has the same first name as b
A. reflexive
B. irreflexive
C. transitive
D. symmetric
E. antisymmetric
(d) a and b were born on the same day
A. symmetric
B. reflexive
C. transitive
D. antisymmetric
E. irreflexive