What characterizes Erectile Dysfunction?

Erectile Dysfunction (ED) is primarily characterized by the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual performance. In this context, the definition aligns with the issue of maintaining an erection during sexual activity, which is a critical component of erectile function. This condition must occur frequently (i.e., most of the time) to qualify as a disorder, emphasizing that it is not just a rare instance but a consistent challenge during sexual encounters.

The other options do not accurately depict Erectile Dysfunction. The inability to achieve sexual arousal irrespective of context relates more to sexual arousal disorders rather than erectile dysfunction specifically. An exaggerated sexual response that causes distress is typically associated with hypersexual disorder rather than ED. Delayed ejaculation pertains to ejaculation difficulties rather than the mechanics of achieving or maintaining an erection, making it unrelated to the core symptoms of ED. Thus, the correct definition focuses on the need for consistent challenges in maintaining an erection during sexual activity.