Which of the following is an example of a pragmatic communication difficulty?

Misunderstanding jokes is indeed an example of a pragmatic communication difficulty, as it relates to the social aspects of language use. Pragmatics involves the ability to use language effectively in social contexts, including understanding nuances, implied meanings, and cultural references that are often present in humor. A joke typically requires not just comprehension of the words but also an appreciation of context, tone, and shared knowledge between speakers.

In contrast, using complex sentences is more aligned with syntactic abilities, errors in word retrieval pertain to lexical access and language formulation, and disorganized speech reflects issues with coherence and organization rather than social use of communication. All of these other options are important aspects of language, but they do not specifically target the pragmatic domain that governs effective social communication, which is why misunderstanding jokes exemplifies a pragmatic communication difficulty.