Which of the following is an example of how seeds of plants can be spread to new areas by nonliving parts of an ecosystem?

I'm not sure what the options are but if the water-cycle/evaporation is an option I'd go with that as plant seeds and such can be picked up and moved via the water cycle or rain. For example the flow of a stream carrying a seed to the edge of a lake.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

b.have there own function.