<span>A is the correct answer. The developmental norms are stages at which humans typically develop the ability to successfully complete an activity without aid, for example, being able to walk. When people have reached the age of the norm and cannot complete the activity, there may be cause for concern.</span>
        
                    
             
        
        
        
Answer:
B.) It is legal for people age 21 and older
 
        
                    
             
        
        
        
Given what we know about visual acuity measurements we can confirm that a score of 20/15 will indicate that<u> the patient has </u><u>better </u><u>than </u><u>normal vision</u><u>.</u>
Visual acuity is most often measured using a chart known as a Snellen chart. The goal of this is to place the patient at a distance of 20 feet and see how many lines in the chart he or she is able to accurately identify. Though this method is becoming less common due to advances in technology, the dual number measurement system drives from these tests. 
The numbers in the score indicate the size of the letters and the distance at which the patient can see them. Though 20/20 is considered the <em><u>optimal normal vision score</u></em>, a score of 20/15 will actually indicate even better vision. This score indicates that at 20 feet, this individual can see <u>smaller letters</u> than the normal person.
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brainly.com/question/6718064?referrer=searchResults
 
        
             
        
        
        
This would be false. Hope this helps you didnt state if this was T/F.