Use the following information to answer the question.

Three rows of a pattern are shown below

Row $1,18+1=9$

Row $2128+2=98$

Row $31238+3=987$

The fifth row of the pattern will be

Select one:

a$.12348+4=9876$

b$.123458+5=98765$

C$.123458+4=98765$

d$.12348+5=9876$