Correct option: A.both hybridisation and genetic modification
(a) both hybridisation and genetic modification
Explanation: The genetic modification provides an avenue for variety improvement. In other omamentals, there are particularly good varieties with excellent post-harvest qualities, disease resistance, and productivity.
One advantage of hybridization is that it can combine disease resistance of one organism with the production capacity of another. Crop yields increase dramatically when hybridization is used to exceed one or more of the parents in size and reproductive potential.