When There Are Two Dividends on a Stock,Black's Approximation Sets

Multiple Choice

When there are two dividends on a stock,Black's approximation sets the value of an American call option equal to which of the following

A) The value of a European option maturing just before the first dividend
B) The value of a European option maturing just before the second (final) dividend
C) The greater of the values in A and B
D) The greater of the value in B and the value assuming no early exercise