Brunelleschi solve his problem with the dome of the Florence Cathedral include option C: He created external supports for the dome.
Filippo Brunelleschi is considered as the inventor of the vault of Santa Maria del Fiore Cathedral in Florence. The term Cathedral is a great architect work.
The Cathedral is called to be the greatest pride and icon. The dome is made by over a million bricks.The structure stands without any support from the ground.
Therefore, correct option is C.
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