Since the sentence of option B doesn't have the sync both the clauses to make it meaning, it contains error.
Answer: B
Explanation:
As we see option A, it seems meaningful as the animals sought shelter while the night drew near. Same case occur with option C and D as in option C, the trees are rustling due to the passing of brisk winds through their branches and in option D, stars will obviously appear brighter as the darkness grows.
But, in the option B, there is no co-ordination of both the clauses of the sentences. The disappearance of the Sun has nothing to do with the silence of woods in a direct manner. Although we can understand it indirectly that in the absence of natural light, animals might consider it as night and sought shelter. Since all other sentences have directly linked clauses, option B is showing indirect relation. Hence, it may be the desired answer as error.