Select the alternative that best expresses the meaning of the given idiom/phrase

Select the alternative that best expresses the meaning of the given idiom/phrase.

A leap in the dark

a)            Something hidden in the dark or behind something else

b)            Doing something without being certain of result

c)            Walking in dark that you cannot see or find the desired person/thing

d)            A blind guess that somehow comes to be correct or right

Sol:

Idiom ‘a leap in the dark’ means something you do without being certain what will happen as a result, eg; I had very little information about the company, so writing to them was a leap in the dark.