听力原文： All flights out of Rock Springs have been cancelled due to inclement weather. Flights will resume as soon as the blizzard has passed. Weathermen predict that the skies should clear within the next 12 hours. Those needing assistance in arranging temporary accommodations should speak with a customer service representative. For those wishing to expedite their departure, arrangements are being made with Charter Buses to reroute passengers to Salt Lake City's Airport. To take advantage of this, please contact a gate representative. The bus will be leaving in approximately 45 minutes. Please see the chartered bus company representatives near the check-in counters to arrange transportation. Checked baggage may be collected at Baggage Claim if you intend to use the bus. Again, we apologize for any inconvenience and will do our best to accommodate your needs.
What time of the year is it most likely？

A. Spring.
B. Summer.
C. Autumn.
D. Winter.