The simple subject of this sentence is Matt Robins.
Sentence 4 because it summarizes the paragraph but does not give an opinion like answer but used factual evidence to support it.
I don't know what story this is from or what is really happening; however, from what I can tell, the author uses the phrase "the annals of parental vigilance" to heavily imply that Daisy's parents are extremely rigid in how they raise her, in an orthodox fashion. "Annals" is defined as yearly record keeping, and "parental vigilance" means that the mother is one that is always watching and correcting her child (from what I can tell.
Adjective because the clause in parenthesis modifies the word picture.
