Supporting details can do all of the enlisted options except introduce the main idea. Supporting details are there to support the main idea, so of course they cannot introduce it. They are the result of the main idea, not its creator.
The correct sentence is:
Each person’s brain develops and forms new connections, but it is not aware of these changes.
The antecedent of the pronoun "it" is "each person’s brain".
Answer :
It is devotion and affection i believe
A word that fills in the blank well is sarcastic Sarcasm is a type of irony, called verbal irony, that makes statements about a character that are obviously not true, and are included to add humor to the novel.
