A Situation in Which the Coefficient of Coincidence Is Greater

A situation in which the coefficient of coincidence is greater than 1.0 would indicate that:

A) the interference is high and one crossover suppresses the occurrence of a second one.
B) no double crossovers were found in the progeny of a testcross, even though some were expected based on probability.
C) double crossovers were found in the progeny of a testcross, but there were fewer of them than would be expected based on probability.
D) there were more double crossovers in the progeny than would be expected based on probability.
E) the genes involved were actually assorting independently.