What does this sign indicate?

A)Danger due to the proximity of a stretch of road where traffic is stopped or hindered by traffic congestion.
B)Danger due to the proximity of a place where there is a vehicle obstructing the roadway due to a breakdown, accident or other causes.Correct
The sign in the question warns of danger due to the proximity of a place where there are vehicles obstructing the roadway due to breakdown, accident, etc.
The sign representing answer a) is the following:
The sign representing answer a) is the following: