Answer:
The answer is D all of the above
-Pointed arches are better approximations of catenary curves that represent the line of compressive force acting in any arch, and thus they exert less outward or overturning thrust. They also present considerable design flexibility, as one can vary to some extent the angle of the arch.
-Rib vaulting builders found that they could lighten the webbing, thereby reducing the material weight of the groin. Reducing the weight of the stone, would allow them to also build to greater building heights.
-Flying Butresses were created to strengthen the upper sections of the skeleton frame because the height of these buildings left them needing reinforcement.
When being at the court with the Duke of Vanholt, Faustus conjured up beautiful illusions to win his favor, this is as much as the reader gets to know so it might be said that the correct option is B: it is unknown. However, then it might be seen that he gave the duchess some grapes as she requested.
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