Which of the Following Is Not a Disadvantage Associated with Seed

Which of the following is not a disadvantage associated with seed banks?

A) the seeds of some types of plants do not tolerate being dried out
B) embryo transfer is ineffective in plants because it has a very low success rate
C) stored seeds do not evolve in response to changes in their natural environment
D) seeds do not remain viable indefinitely and must be periodically germinated
E) accidents, such as fires and power failures, can destroy the seeds