Answer:
The car was stuck in the snow as a result of snow that falls the whole night.
Explanation:
The complex sentence must have an independent and dependent clause. The independent clause must contain subordinating conjunction or a relative pronoun.
In an example, the independent clause has a subordinating conjunction "as a result of". The two sentences are connected with a subordinating conjunction. The consequence of snow falling is a car who is stuck in the snow and these two actions are connected in a complex sentence.