An index of 30 stocks is price-weighted average with a value of 100 and a sivisor of 30. One of the stocks has a price if $105 per share before it splits. Then it splits 7 for 1. To keep the index unchanged as a result of the split, what would the new divisor have to be?

a. 29.85

b. 29.50

c. 29.10

d. 28.95