$f\text{ and }h\text{ are from }A\text{ into }B\text{ where }A=\{a,b,c,d\}$,$B=\{s,t,u\}\text{ defined as }f\left(a\right)=t,f\left(b\right)=s$,$f\left(c\right)=s,f\left(d\right)=u;h\left(a\right)=s,h\left(b\right)=t,h\left(c\right)=s,h\left(a\right)=u,h\left(d\right)=u$ which one of the following statement is true.