Correct option is C
Option (c) is the correct meaning of the given idiom.
Walk on air: To feel very happy or elated, as if floating due to joy. (हिन्दी अर्थ: बहुत प्रसन्न होना, ख़ुशी से फूला न समाना)
Example: She was walking on air after getting the job offer.
At least 3 other related idioms and their meanings:
·
Over the moon – Extremely happy.
·
On cloud nine – In a state of great happiness.
·
Jump for joy – To express happiness through action.