If α is the degree of ionization, C the concentration of a weak electrolyte and Kₐ the acid ionization constant , then the correct relationship between α and C is
A) α²=√(Kₐ/C)
B) α²=√(C/Kₐ)
C) α=√(Kₐ/C)
D) α=√(C/Kₐ)