21. The ability of ELs to express themselves in ways that are appropriate to the situations in which they are speaking is most commonly referred to as

Answer: A

Explanation:

Sociolinguistic competence

Sociolinguistic competence refers to the ability of English learners (ELs) to express themselves appropriately in various social contexts. This competence encompasses understanding social norms, cultural references, and the nuances of language that are suitable for different situations.

A) sociolinguistic competence

This option is correct as it specifically addresses the ability to navigate language use in social contexts, which includes the appropriateness of expressions based on situational factors. Sociolinguistic competence is essential for effective communication, particularly for ELs who need to adapt their language to fit diverse interactions.

B) strategic competence

Strategic competence relates to the ability to use communication strategies to overcome difficulties in communication, such as using paraphrasing or gestures when language barriers arise. While important, this option does not specifically address the appropriateness of language use in varied social situations as sociolinguistic competence does.

C) grammatical competence

Grammatical competence involves the knowledge of syntax, morphology, and phonology of a language. It focuses on the correctness of language use rather than the appropriateness in social contexts. Therefore, this option does not align with the question regarding situational appropriateness in expression.

D) structural competence

Structural competence is not a widely recognized term in the context of language proficiency. If interpreted as the ability to understand and use the structural aspects of language, it still fails to address the appropriateness of language use in social situations, which is the core aspect of sociolinguistic competence.

Conclusion

Sociolinguistic competence is the only option that directly addresses the ability of ELs to communicate appropriately in various social contexts. Other options such as strategic, grammatical, and structural competencies focus on different aspects of language use, failing to capture the essence of situational appropriateness that is critical for effective communication. Thus, option A stands out as the definitive correct answer.