The number of employees that do not speak Russian is 17. Option B
A Venn diagram is an illustration that uses circles to show the relationships among things or finite groups of things.
Circles that overlap have a commonality while circles that do not overlap do not share those traits. Venn diagrams help to visually represent the similarities and differences between two concepts.
We can see that the elements that are exclusive to Spanish and Chinese employees gives;
= 8 + 3 + 6
add the values, we get;
= 17