The subsets are

Φ,

{a}, {b}, {c}, {d}, {e},

{a, b}, {a, c}, {a, d}, {a, e}, {b, c}, {b, d}, {b, e}, {c, d}, {c, e},{d, e},

{a, b, c} , {a, b, d}, {a, b, e}, {a, c, d},{a, c, e} ,{a, d, e},{b, c, d}, {b, c, e}, {b, d, e}, {c, d, e},

{a, b, c, d} , {a, b, c, e} , {a, b, d, e} , {a, c, d, e} , {b, c, d, e} ,

{a, b, c, d, e}.