Which of the following describes a key characteristic of language disorders?

The correct answer emphasizes that a key characteristic of language disorders encompasses both difficulties in understanding language and challenges in using language effectively. Language disorders can manifest in a variety of ways, impacting an individual's ability to comprehend spoken or written language, as well as their ability to express themselves, whether verbally or through writing.

Understanding language difficulties may involve challenges with grasping vocabulary, following directions, interpreting complex sentences, or understanding the nuances of language such as idioms and jokes. Additionally, using language can include problems with formulating sentences, choosing appropriate words, or applying proper grammar. This comprehensive view highlights that language disorders affect both receptive (understanding) and expressive (using) aspects of communication.

Other options focus on narrow facets of language difficulties or suggest misconceptions about the nature and permanence of language disorders, which do not reflect the broad and multifaceted challenges presented by true language disorders.