What does 'yearning' refer to?

'Yearning' refers to a strong, often melancholic desire or longing for something that one feels is missing or unattainable. This term captures the profound emotional depth associated with a longing that goes beyond mere interest or superficial cravings. It conveys a sense of emotional investment and an intense desire for connection, fulfillment, or resolution.

In this context, the correct choice demonstrates an understanding that 'yearning' signifies a deeply felt wish or aspiration, often linked to sentiments of nostalgia or unfulfilled desires. The other options do not encapsulate this emotional weight; casual interest and superficial desire imply a fleeting or light engagement, while contempt represents a negative feeling toward something rather than an earnest longing for it.