Answer: c) Because the farmer tested only 2 cows giving insufficient data to from a reliable conclusion.
Step-by-step explanation:
The independent variable in this experiment is the food the effect of which is required to be observed on the cow milk taste. The cow milk taste is the dependent variable.
The results of this experiment can be misleading this is because of the fact that the sample size for the experiment was low that is just 2 cows. This cannot help to decide that the cow which receives the organic food yields tasty milk it may dependent upon the cow species, health of the cow and other factors.