your answer is D hope this helps and please tell me if im wrong
 
        
                    
             
        
        
        
<span>If one has poor physical health, for example, obesity, the individual may spend more time living a sedentary lifestyle. Those who live with this type of lifestyle spend more time indoors, playing video games, watching tv or playing on their phones. By isolating ones self from social contact there are more incidences of depression, anxiety, and panic disorders. Individuals who regularly go to the gym, grocery store or hang out with friends have shown to have a lesser prevalence rate of mental health disorders as well has lesser physical health issues. A sedentary lifestyle can also lead to numerous other health issues such has heart disease, cardiovascular disease, various types of cancers and lung diseases.</span>
        
             
        
        
        
According to The Elements of Style, the correct way to punctuate this sentence is, Conservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined. 
Answer: Option C. 
Explanation:
Punctuations are the marks such as comma, semicolon, exclamation that we use while writing. Punctuation helps to give a clear meaning to the sentence. ‘The Elements of style’ is a book written by William Strunk which describes the proper way of writing style. 
From the sentences given below, the correct way to punctuate this sentence is, ‘Conservationists are considering urban runoff, and they are tracking population growth, but the magnitude of the situation has not been determined.’ Here we can see that after the dangler is separated with a comma. Apart from this in the first line, two ideas are being discussed which is further separated by adding comma thus making a sentence readable. 
 
        
                    
             
        
        
        
The attitude of the author
        
             
        
        
        
The correct answer is lives