From the circumcentre L of $$\angle XYZ$$, perpendicular LM is drawn on side YZ. If $$\angle XYZ = 60^{\circ}$$, thent the measure of $$\angle YLM$$ is:

A

$$60^{\circ}$$

B

$$120^{\circ}$$

C

$$180^{\circ}$$

D

$$90^{\circ}$$