Final answer:
The correct answer to the question is that word meanings adjust frequently in response to social changes. Language is not static, and its evolution is shaped by cultural and societal influences, not just by official lexicographers.
Step-by-step explanation:
The accurate description of the nature of language among the provided options is that word meanings adjust frequently in response to social changes. Language is dynamic and evolves in response to cultural, societal, and practical needs. This adjustment can be seen in the way dictionaries are regularly updated to reflect current usage and meanings, such as the Oxford English Dictionary, which chronicles the historical changes in word meanings. The Sapir-Whorf hypothesis or linguistic relativity principle also underscores the idea that language and perception are intertwined and that as social contexts change, so does language.
The idea that English is spoken the same way across the entire United States is not accurate as there are many regional dialects and variations. Likewise, language does not change solely at the behest of official lexicographers; everyday usage by the public plays a significant role in language evolution.