Your Friend Has Never Gardened Before

Your friend has never gardened before.When none of the seeds he planted germinate, he asks you to suggest why.Which is the best explanation of what occurred?

A) The monocot seeds he used were only able to produce a single cotyledon each.
B) The seeds were planted too deeply and used up their reserves before reaching the surface and sunlight.
C) The suspensor failed to develop into an embryo within each seed.
D) All seeds require fire in order to germinate.