If the market prices of each of the 30 stocks in the Dow Jones Industrial Average (DJIA) index all change by the same percentage amount during a given day, the stock which will have the greatest impact on the index is

a. the one whose stock trades at the highest dollar price per share.

b. the one whose total equity has the highest market value.

c. the one having the greatest amount of equity in its capital structure.

d. the one having the lowest volatility.