Which of the Following Vectors Are Parallel To $\vec{v}=5 \vec{i}-2 \vec{j}+2 \vec{k}$

Multiple Choice

Which of the following vectors are parallel to $\vec{v}=5 \vec{i}-2 \vec{j}+2 \vec{k}$ ? Mark all that apply.

A) $\vec{r}=-10 \vec{i}+4 \vec{j}-4 \vec{k}$
B) $\vec{s}=5 \vec{i}+2 \vec{j}-2 \vec{k}$
C) $\vec{t}=6 \vec{i}-3 \vec{j}+3 \vec{k}$
D) $\vec{u}=15 \vec{i}-6 \vec{j}+6 \vec{k}$
E) $\vec{w}=-2 \vec{i}+2 \vec{j}+5 \vec{k}$