The alternate support system is first found in the architecture of Carolingian period. Therefore, the correct option is c. Carolingian.
What is the alternate support system in architecture?An alternate support system is a structural form that enables the roof to be supported by an internal sequence of piers rather than by exterior walls.
This style of architectural support structure can be seen in the Carolingian architecture period.
Carolingian period
The Carolingian period, which lasted from 780 to 900 AD, was a period of flourishing art, architecture, and literature.
The architects of this era were able to develop an architectural style that was more advanced and grand than what had been done before.
Among the many achievements of the Carolingian period is the creation of an architectural style that employed alternate support systems.
This structural innovation permitted a more significant open area, making the buildings feel more open and airy. Hence, option c is the correct answer.
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