If \(abc\ne 0,\) is \(\dfrac{\dfrac{a}{b}}{c}=\dfrac{a}{\dfrac{b}{c}}?\)

[Gmat_mission]

If \(abc\ne 0,\) is \(\dfrac{\dfrac{a}{b}}{c}=\dfrac{a}{\dfrac{b}{c}}?\)

(1) \(a = 1\)
(2) \(c = 1\)

Answer: B

Source: Official Guide