m= 12
12+ 10/26 = 0+22
22=w
a=0
0+ 10/26 = 0+ 10
10=k
t= 19
19+10/26 =1Yu 3
3=d
h=7
7+ 10/26 = 0 Yu 17
17=r
s= 18
18+10/26 =1Yu 2
2=c
Mathematics = wkdrc
The answer is a.