If (sin(y°) = cos(x°)), which of the following statements is true?

a. (y = x) and (Δ ABC ≈ Δ CDE)
b. (y = x) and (Δ ABC ≅ Δ CDE)
c. (y = w) and (Δ ABC ≈ Δ CDE)
d. (y = w) and (Δ ABC ≅ Δ CDE)