Suppose a GA$5$ uses chromosomes of the form $x=$ abcdefgh with a fixed length of eight genes. Each gene can be any digit between $0$ and $9.$ the fitness of each chromosome calculated as: $f(x)=$ abs $(a+b)+(c+d)+(e+f)-(g+h),$ the initial population consist of four individuals with the following chromosomes: $x1=65413532,x2=87126601,x3=23921285,x4=41852094,$ by suing Roulette wheel for selection, and $2-$digit crossover the a and $g$ of the on selected chromosome with $g$ and a of the other selected chromosome, and with $1$ digit mutation of the first with the final, the best chromosome will be:

a$.$ Xbest $=17126601$

b$.$ Xbest $=67126601$

c$.$ Xbest $=67126602$

d$.$ Xbest $=85412502$

cleat my choice