Answer:
(Note: The options provided to the above question are incorrect. However, I am providing the answer with the appropriate set of options for the given question).
Options: A) a valley surrounded by mountains
B) times of heaviest traffic.
C) cold weather
D) sunny weather
Correct Answer: Option C, i.e. cold weather.
Step-by-step explanation:
Asthma is a severe respiratory disease that increases with poor air quality especially in cold and windy weather conditions. If Alec wants to reduce the chances that he might contribute to a major smog occurrence, he must avoid using the vehicle in the cold weather conditions and areas experiencing such climatic conditions. Therefore, the answer to the given question is cold weather conditions as it is not suitable for asthma patients because it results in conditions like smog.