Final answer:
Romeo is a Petrarchan lover because he is obsessed with an idealized, unattainable woman - initially Rosaline and then Juliet - and expresses his emotions through exaggerated language. He fits the Petrarchan model more closely than the other options, most notably through his unrequited love for Rosaline and idealization of Juliet. C is the relevant answer.
Step-by-step explanation:
In Romeo and Juliet, Romeo can be considered a Petrarchan lover primarily in the way he is obsessed with a woman he cannot have and idealizes her, which aligns with answer option (a). When Romeo first speaks of Rosaline, his unrequited love before meeting Juliet, he demonstrates the typical traits of a Petrarchan lover - he laments his unreturned affection while idealizing Rosaline's virtues to the point of hyperbole.
This type of lover often suffers, pines, and goes through an emotional ordeal due to their unattainable love. As the play progresses and Romeo falls in love with Juliet, he continues to use exaggerated language and idealization common of Petrarchan love poetry. This is vastly different from the portrayals of English Renaissance poetry where poets used the theme of unrequited love not just to lament their plight but to explore deeper philosophical issues.
Answer option (c) also has some relevance since Romeo uses witty wordplay when he courts Juliet, particularly during the balcony scene, but this is not exclusive to the Petrarchan model. Options (b), his confidence and aggressiveness, and (d), his patience and contentment in waiting, do not represent the defining characteristics of a Petrarchan lover, especially considering Romeo's impulsive actions and his despair over not being able to immediately be with Juliet.