$\backslash$table$[[$Firm$,$Market Share $(\%)],[$A$,20],[B,20],[$C$,20],[$D$,20],[$E$,10],[$F$,10]]$

Refer to the data. Suppose that firms in this industry split up such that there were $100$ firms, each with a $1$ percent market share. The four$-$firm concentration ratio and the Herfindahl index respectively would be

Multiple Choice

$100$ percent and $10,000.$

$4$ percent and $100.$

$100$ percent and $16.$

$4$ percent and $4.$