Suppose you want to set up an experiment to test the hypothesis that electromagnetic fields cause ccd, and you have 6 hives to work with. which of these is the best experimental setup?
a. 6 hives exposed to high levels of emf
b. 5 hives exposed to high levels of emf and 1 hive with no emf exposure
c. 3 hives exposed to high levels of emf and 3 hives with no emf exposure
d. 2 hives exposed to low emf levels, 2 hives exposed to medium emf. levels, and 2 hives to high emf levels