Which of the following occurs when one population produces a substance inhibitory to other populations?

Correct option is B

The correct answer is: B) Amensalism Explanation: Amensalism is a type of interaction where one species is inhibited or destroyed while the other remains unaffected.
Information Booster:
Penicillin-producing fungi inhibit bacteria (classic example of amensalism).
In mutualism, both species benefit; in commensalism, one benefits and the other is unaffected.