Explanation:
> "Don't eat just any innocuous looking mushroom you see around."

"Innocuous" means something that is not harmful or not likely to cause any harm.

Now, let's look at the options:

- A. harmful — This means something that causes harm, which is the opposite of "innocuous." Incorrect.
- B. harmless — This means something that does not cause harm, which fits perfectly with the meaning of "innocuous." Correct.
- C. innocent — While "innocuous" might seem related to "innocent," the context here is more about harm than moral purity. Incorrect.
- D. immunized — This means protected from disease, which has no relation to the meaning of "innocuous." Incorrect.
- E. conspicuous — This means something that is easily seen or noticeable, which is unrelated to the meaning of "innocuous." Incorrect.