Early identification of developmental problems

the correct answer is d.

hope this

a.  

touch, isolation, overlap, and combining

b.  

touch, close edge, gradation, and balance

c.  

touch, close edge, overlap, and combining

d.  

touch, close edge, unity, and contrast

u cool

explanation:

because your awesome and tell them you work hard day and night to show people you can ordinary stuff every is special is their own way and if you work hard day in day out you will get this every one gots this you just have to believe in your self