Final answer:
The statement is made by Mark Antony, referring to his conflict with Octavian during the power struggles in ancient Rome following Caesar's death.
Step-by-step explanation:
The passage "To lend me arms and aid when I required them, the which you both denies" is attributed to the character Mark Antony in the historical context of the tumultuous relationships between the leading figures of the Roman Empire after Julius Caesar's assassination.
When Mark Antony mentions the denial of arms and aid, he is speaking to Octavian (who would later be known as Augustus), addressing the conflict that ultimately led to the naval Battle of Actium, where Octavian defeated the forces of Antony and Cleopatra. Thus, the correct answer to which character makes the statement is B) Antony.