The given sentences demonstrate a logical fallacy of false cause as explained below. So, option (a) is the correct answer.
The false cause fallacy occurs when the "relationship between premises and conclusion is dependent on some perceived causal connection that most likely does not exist."
Overfishing will undoubtedly deplete the ocean's fish stocks, resulting in a global calamity. This, however, will not result in the food shelves being bare.
For more information about the logical fallacy, refer below
https://brainly.com/question/16038954