Answer:
a. The scientists must be careful of how many variables they include in their simulation so they do not cause further harm to the frogs.
Step-by-step explanation:
It is not statistically accurate to assume that the number of variables included in the simulation would cause further harm to the frogs because we need to remember that a simulation is simply a computerized imitation of a real situation, which is usually not totally alike with a real process.
So in no way from a statistical standpoint, does the scientists' decision on the number of variables causes direct harm to the frogs.