Find the shortest distance between the set of parallel lines. ( vec{r}=( hat{i}+2 hat{j}- hat{k})+ ( hat{i}+ hat{j}+ hat{k}) )

• A. n ( vec{r}=(3 hat{i}- hat{j}+3 hat{k})+ ( hat{i}+ hat{j}+ hat{k}) )
• B. ( sqrt{34} )
• C. ( sqrt{26} )
• D. 5
• E. ( sqrt{27} )