The correct answer would be C.
Hi. You have not presented the chart that this question refers to, which makes it impossible for it to be answered. However, I will try to help you as best I can.
An innovation is a creation of something new, or something that completely modifies an activity that was already done before. In other words, an innovation is the process of promoting something new and positive to society. Therefore, to answer this question, you must identify on the chart which element caused something new and positive in the world.
Answer:
During this age, smallpox, measles and tuberculosis were what many suffered from.
Explanation:
