In the name of ALLAH, the most beneficient, the most merciful

Topology (MTH634)

Question (select most suitable option)

  Let \(X = \{a, b, c, d\}\). The following set is a topology on X.
{φ, {b}, {c}, X}
{φ, {b}, {a, b}, {c}, X}
{φ, {b, d}, {a, b, c}, {b}, X}
None of the given