[ (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, ]
Not sure what your question is, but here is some information about it:
- It was introduced around 1750s but people already partially stopped using it around 1790s
-There were some specific rules for it, but there was some confusion about them and not everyone followed them
- it started with the capitalization of the main word in the sentence and then Capitalisation of all Substantives was introduced
-in German such a capitalization was introduced in 17th century too, and remains to this day
It would be letter a, since an interrogative sentence is question. Since the first answer is the only one with a question mark, the answer is a.
