What is the function of the monologue?

A. to increase the tension around Caesar's trip to the Senate by vividly describing various supernatural omens
B. to characterize Caesar by showing his defiance of danger and his unwillingness to be perceived as cowardly
C. to characterize Calpurnia by showing her concern for Caesar's well- being and her directness in addressing him
D. to increase the tension around Caesar's trip to the Senate by introducing a note of hesitation in his response