Which of the following will strengthen parallel structure in the underlined sentence above?
Question 1 options:
There are at least three aspects of Hamlet of interest to a student of human emotions: grief, infatuation, and madness.
There are at least three aspects of Hamlet of interest to a student of human emotions: grief, his being love-struck, and his madness.
There are at least three aspects of Hamlet of interest to a student of human emotions: the death of his father, his being love-struck, and his mental state.
There are at least three aspects of Hamlet of interest to a student of human emotions: his grief, his infatuation, and his madness.