Answer:
The correct answer is option a) "There is always a chance that a microscopic bacterium could escape undetected from the lab, and end up in the environment".
Step-by-step explanation:
One of the reasons why a scientist should consider if creating a synthetic bacterium is a good idea is that there is always a chance that a microscopic bacterium could escape undetected from the lab, and end up in the environment. A synthetic bacterium could be considered as a new bacterium or as a new species, therefore, there is no evidence of what would be the environmental impact of this new organism. Therefore, there is a risk that the microorganism could be released into the environment accidentally and could generate an environment impact.