Correct Answer: To receive unexpected news

Solution : The correct choice is the first option .

The idiom b olt from the blue is derived from the imagery of a bolt of lightning suddenly striking from a clear blue sky, where there were no apparent signs of a storm. In a figurative sense, it refers to an unexpected and startling event or shock that occurs without any warning or anticipation.

Therefore, the most appropriate meaning of the given idiomatic expression is, to receive unexpected news.