Which statement best describes the relationship between the two figures

Two figures are said to be similar if their sides are proportional and the corresponding angles are equal.
Here, in ABCD and A'B'C'D', clearly,
AB = A'B'
BC = B'C'
CD = C'D'
DA = D'A'
Also, ∠A = ∠A', ∠B = ∠B', ∠C = ∠C' and ∠D = ∠D'
Hence, the two figures are similar and the first statement best describes the relationship between the two figures.
The answer is the first option: Figure ABCD is similar to A'B'C'D'.
The explanation for this exercise is shown below:
By definition, you can conclude that the figures shown in the figure attached are similar because both have the same shape and the ratios of length of the corresponding sides are equal too. As you can see, the corresponding sides have the same length. Therefore, both are similar.