Question

Because of the ice. The roads were a slippery hazard. Which is the best revision of the sentences? The roads were icy, slippery, and hazardous. The roads were a slippery hazard of ice. Because of the ice, the roads were a slippery hazard. The icy and slippery roads were a major hazard.

Answer 1

Because of the ice the roads were a slippery hazard. 

Answer 2

The answer to your question would be that the best revision of the sentence is the following one: Because of the ice, the roads were a slippery hazard.

"Because" is a subordinating conjunction that is used to introduce a word or phrase that stands for a clause expressing an explanation or reason. The conjunction means "for the reason that, since".