2. Identify the integral that it not well formed.

[A] ²%*

SSS f(x, y, z)dzdxdy

000

[B] 2xy

[D]

SSS f(x, y, z)dzdydx

00x

[C] 2xx

SSS f(x, y, z)dzdydx

000

2yx

SSS f(x, y, z)dzdydx

000