<span>I'm guessing that one of your answers are criticizing weaknesses. </span>
Lack of physical activity and genetics.
Answer:
The correct answer is option A
A. Maintaining a good mask-to-face seal is difficult.
Explanation: this is because of the relationship between the mask size and the mask seal. A wrong size of mask will hinder a good seal causing air to escape through the edges making it difficult to breath.
Seven to thirteen minutes
