Tell Whether the Relation Is Reflexive, Symmetric, or Transitive on the Set

Multiple Choice

Tell whether the relation is reflexive, symmetric, or transitive on the set of all people. Also tell whether the relation is an equivalence relation.
-"Is a sibling of"

A) Reflexive and symmetric; not an equivalence relation
B) Reflexive and transitive; not an equivalence relation
C) Symmetric and transitive; not an equivalence relation
D) Reflexive, symmetric and transitive; equivalence relation