Answer:
Many exotic pets are illegal because someone thinks they will harm the environment either by escaping and forming invasive populations or introducing diseases. 4. Misguided Environmental Concerns
Explanation:
because
The last option: Basing a conclusion on insufficient evidence
The correct answer is a because the second word in the sequence is what word most closely relates to the sense before it.
a repeated or additional performance of an item at the end of a concert, as called for by an audience.