Let L be a set with a relation R which is transitive, antisymmetric and reflexive and for any two elements a, b ∈ L. Let least upper bound lub (a, b) and the greatest lower bound glb (a, b) exist.

Let L be a set with a relation R which is transitive, antisymmetric

1.	Let L be a set with a relation R which is transitive, antisymmetric and reflexive and for any two elements a, b ∈ L. Let least upper bound lub (a, b) and the greatest lower bound glb (a, b) exist.
A.	L is a Poset
B.	L is a lattice
C.	L is a boolean algebra
D.	none of these
Answer» C. L is a boolean algebra