Select the most appropriate meaning of the given idiom.

Blessing in disguise

Bad thing that turns out to be good

The most appropriate meaning of the idiom "blessing in disguise" is a bad thing that turns out to be good. It is an informal expression that means that something that seems negative or unfortunate at first may actually lead to something positive in the end. The idiom is thought to have originated in the 17th century, and it is believed to be a reference to the fact that God can sometimes use bad things to bring about good.

The other options for the meaning of the idiom are incorrect. A good deed does not reward as a blessing. A good thing introduced into your life is not a blessing in disguise. Something that happens very rarely is not the same as a blessing in disguise.