Correct option is A
Option (a) is the correct meaning of the idiom.
Idiom: To burn one’s finger means to suffer loss or trouble due to one’s own careless or rash actions. (Hindi: जल्दबाज़ी में नुकसान उठाना)
Example: He burnt his fingers by investing in a shady scheme.
Other related idioms:
· Pay the price – suffer because of a choice.
· Get into hot water – get into trouble.