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) two sets of fractures, one inclined toward the road cut and the other away
B) two sets of fractures, one widely spaced and sub- horizontal, the other inclined away from the highway cut
C) one set of widely spaced fractures inclined towards the road cut
D) one set of widely spaced, sub- horizontal fractures