Consider a Steep Highway Cut Made by Removing Slightly Weathered

Consider a steep highway cut made by removing slightly weathered to fresh, fractured, granite bedrock. Which of the following situations is most stable against rockslides?

A) three sets of closely spaced angular fractures
B) one set of widely spaced, sub- horizontal fractures
C) two sets of fractures, one widely spaced and sub- horizontal, the other inclined towards the highway
D) two sets of fractures, one inclined toward the road and the other into the slope

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