Are they sets equal?

Question

Let
A = {3, 4}
B = {3, 4} ∪ ∅
C = {3, 4} ∪ {∅}
D = {x (x − 3)(x − 4) = 0}
E = {∅, 3, 4}
F = {4, 4, 3}
G = {4, ∅, ∅, 3}
Which of these sets are equal?


** My Answer**:
Set B is equal to set C.
And set C is equal to set E.
And therefore set B is also equal to set E.

Any mistakes in that? Additions?

Answer 1

A = B = F
B is not equal to C
C = E = G
D is not equal to any of the others.