Final answer:
Mildred and Clarisse from 'Fahrenheit 451' both interested Montag at some point, Mildred as his wife and Clarisse as an intriguing neighbor, influencing his evolving worldview.
Step-by-step explanation:
In Fahrenheit 451, the similarities between Mildred and Clarisse are subtle, as they represent polarizing aspects in the life of the protagonist, Montag. The most accurate similarity that can be identified is that both women interested in Montag at some point (Option C). Mildred, Montag's wife, initially holds his attention due to their married life together, although their relationship becomes strained as the story progresses. On the other hand, Clarisse, a young neighbor, intrigues Montag with her unconventional perspectives on life which stirs a curiosity in him, although the two do not have a romantic relationship. Thus, while the nature of their relationships with Montag differ—Mildred as a wife and Clarisse as a friend or muse—they both significantly influence Montag's evolving worldview.