Answer: LAST OPTION.
Step-by-step explanation:
By definition the line segment that goes from a vertex of the triangle to the midpoint of the oposite side, is called "Median of a triangle".
The medians of a triangle intersect at point called "The centroid of the triangle" and this divides each median in a ratio
.
In this case, you can notice that the Centroid of the given triangle is the point "X".
Based on the explained before, we can write the following porportion:

Solving for "XW":

Since the lenght of "RX" is 27 centimeters, you know that;

Substituting
into
and solving for "RX", we get that its lenght is:
