If you want the results of your study generalize to every llama lover in Argentina, you must:

a. Employ random assignment to conditions in your experiment
b. Manipulate the independent variable
c. Utilize a large random sample of every llama lover in Nova
d. Scotia Include every llama lover in Nova Scotia in your study Either answer 3 or 4

c. Utilize a large random sample of every llama lover in Nova

Explanation:

The best way to generalize the results of your research to all lovers of Ilhama in Argentina is through a large random sample of lovers from Ilhama.

This is because, a sampling is what determines the target population of your research, which in this case are lovers of Ilhama. When this sampling is done at random, resulting in a large and comprehensive sample, it means that all, or several, elements that make up the loving population of Ilhamas are being represented, which allows a generalization to be made in a more practical and accurate way.

don't hold me on this but it should be b