Four Firms Control the Market for a Particular Good,resulting in an HHI

Multiple Choice

Four firms control the market for a particular good,resulting in an HHI of 2,800.Total industry sales are $750,and it is known that one firm has sales of $300.If each of the remaining three firms has the same sales,then we can conclude that the remaining three firms each have a market share of:

A) $205.
B) $100.
C) 0.20.
D) 0.40.