A deep fissure in earth, rock, or another surface
As far as I can see, there is only one word in the paragraph which is misspelled, and that would be desidne.
I'm assuming you wanted to write 'design,' because to design a building means to create a sketch of what it would look like when it is built.
[ (a.) What in me is dark
Illumine, what is low raise and support; ]
That to the highth of this great Argument
[ (b.) I may assert th' Eternal Providence, ]
Answer:
it's A. The art is not meant to kept in a frame and
can expand into infinity
Explanation: