The development of a new experimental method is most likely to change a theory if it makes it possible

Which of the following is a testable hypotheses?

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.

Which process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion