Select the most appropriate meaning of the given Idiom:-

"Don’t count your chickens before they hatch"

Not to rely until you are sure

The most appropriate meaning of the idiom "don't count your chickens before they hatch" is not to rely until you are sure. The idiom comes from the idea of someone counting their chickens before they have hatched, which means that they are assuming that something will happen, even though it is not yet certain. In a figurative sense, to say that someone is "counting their chickens before they hatch" means that they are being too optimistic or that they are relying on something that may not happen.

The other options are not as accurate descriptions of the meaning of the idiom. Being optimistic is not the same as not relying until you are sure. Trying hard to gain success is not the same as not relying until you are sure. Proceeding a course of action in wrong direction is not typically associated with the idiom "don't count your chickens before they hatch."