I think the correct answer from the choices listed above is option B. The element that should be placed on the backside of a word card is the pronunciation of the word. This should be more helpful to the one you are teaching because you will know the right pronunciation of the word.
Meaning that mans progress (maybe) is mostly driven by his needs and greed for the material things in life.
Answer: By revealing his dedication to the academic study of disease
Explanation: