How should the data paths of the broken layers be repaired most efficiently?

A company is migrating all external data to a new server, which causes the data paths of several layers in a map document to break.

How should the data paths of the broken layers be repaired most efficiently?
A . Open the map document > Right-click each layer with a broken data source > Data > Repair data source
B . Open the map document > Right-click each layer with a broken data source > Properties > Set data source
C . Open ArcCatalog > Create new folder connection > Connect to data folder on new server
D . Open ArcCatalog > Right-click the map document > Set Data Source(s)

Answer: A

Explanation:

Reference: http://desktop.arcgis.com/en/arcmap/10.3/map/working-with-layers/repairing-broken-datalinks.htm