Genomics can be used in agriculture to:
generate new hybrid strains
improve disease resistance
improve yield
all of the above

All of the above

Explanation:

Genomics opens the doors for all of them. Knowing how the crops are genetically constituted gives nearly impossible possibilities to improve yield, for example by increasing disease resistance through selection.

Another way to use this knowledge is by doing specific breeding, to generate new hybrid strains.

i believe it would be c: tons.