If the Herfindahl Index Is the Same in Two Industries

Multiple Choice

If the Herfindahl index is the same in two industries, we can conclude that

A) the number of firms in each industry is the same
B) there must not be the same number of firms in the two industries
C) the sum of the squared market shares of all firms is the same in the two industries
D) there must be an identical distribution of market share among firms in the two industries
E) there must be a different distribution of market share among firms in the two industries