Final answer:
The quote is about Mark Antony's sudden mood change in Shakespeare's play, indicating the correct answer as C) Antony. It reflects his mixed disposition of levity and Roman duty.
Step-by-step explanation:
The quote “He was disposed to mirth but on the sudden / A Roman thought hath stuck him” refers to the character of Mark Antony in Shakespeare's play. The correct answer to the question is C) Antony. This excerpt illustrates Cleopatra's observation about Antony's sudden shift in mood from being merry to being pensive due to a 'Roman thought,' which points towards the constant interplay between his hedonistic inclinations and his Roman political responsibilities. Mark Antony was known for his excesses and his alliance with Cleopatra, as well as for his role as a Roman general and politician. His internal conflicts and public actions are crucial components of the historical and dramatic narratives that surround his life.