Problems faced by air crash​

(i) Cost of operating airlines is very high and so freight cost is very high as compared to sea transport.

(ii) It is difficult to carry bulky, awkwardly shaped goods.

(iii) Very risky in case of accident.

(iv) It is controlled by climatic conditions; thus bad weather leads to uncertainty in its time table.

You did not include options but the answer is any state that is not California or Nevada.

The Sierra Nevada Mountains are a mountain range in the western region of the United States that extend for 400 miles. The majority of the mountain is located in California with a smaller part in Nevada.

With these being the only two states the mountains are in, any other option apart from them would be right for your question.