Correct option is A
Option (a) is the correct meaning of the given idiom.
Save your breath: It means
don’t waste time or effort because it will not be effective. (Hindi: कुछ बोलना बेकार है, कुछ कहने से कोई फर्क नहीं पड़ेगा)
Example: Don’t try to explain—just save your breath.
3 Similar Idioms:
·
Talk to a brick wall – Speak to someone who doesn’t listen.
·
Waste your words – Speak in vain.
·
Fall on deaf ears – Be ignored.