The value of the line integral

$\int_{c}^{} (2xy^{2}dx+2x^{2}y dy+dz)$

along a path joining the origin $(0, 0, 0)$ and the point $(1, 1, 1)$ is

1. $0$
2. $2$
3. $4$
4. $6$
in Calculus
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