#includeintfun1(inta,intb,intc);intmain(){inta=11,b=21,c=31;fun1(a,b,c);printf("%d%d%d",a,b,c);return0;}intfun1(inta,intb,intc){a=a+10;b=b+10;c=c+10;returnc;} A: 112131 B: 211131 C: 113121 D: 312111