Concept:An antonym is a word that is most nearly opposite in meaning to the underlined word.
Explanation:The underlined word "rebuked" means to scold or express sharp disapproval of someone.
The word most nearly opposite in meaning is "commended", which means to praise formally or officially.
"Embraced" means accepted or hugged, so it is not the opposite.
"Thanked" means expressed gratitude, which does not fit the meaning.
"Supported" means helped or backed, which is not the opposite of rebuked.
Therefore, the word that correctly fills the gap is "commended".
Answer:A. commended