Which of these explains why a word has a different meanings

I don’t see a picture, but if I had to guess, As a language develops, new usages, meanings, subtleties and nuances arise.

That's because the other important element of language is context. ... The more of these words included in a language, the faster, and more efficiently, people could understand one another — as long as they were also good at parsing out which of the words' different meanings were appropriate.