D I think........................................................
I already answered but... I can’t give a brief explanation my apologies!
Answer:
The third answer
Explanation: (I think it's the third answer mainly because in the excerpt it says "...Somehow the mystery of language was revealed to me." After this quote, she began to spell out water, and I think this puts emphasis on her discovery of language.
In order for a new word to be maintained in your vocabulary you must use it.
