What can the user do to increase drawing performance?

A-layer tiding simple symbology is causing slow drawing performance at a scale where analysis needs to be conducted. Only certain features from this layer are necessary in order for analysis to be completed by the ArcGlS user

What can the user do to increase drawing performance?
A . reproject the layer
B . run the MXD doctor on the map document
C . apply a definition query
D . set a scale range to hide the layer

Answer: C