What Did Saul Alinsky Mean by "Freezing the Target

What did Saul Alinsky mean by "freezing the target?"

A) Keep the target in the dark as much as possible, freeze them out
B) Choose one strategy for your target- if you switch strategies, switch targets
C) Pick a target and stick with them, make them the face of your issue
D) Pick a target before you begin planning and develop all your planning around them