B: Naval warships covered with iron.
Answer:
i have no idea if its correct but i think the answer is A.
I believe the answer is: <span>self-fulfilling prophecy
</span><span>self-fulfilling prophecy refers to the prediction that indirectly become true due to the influence of believe/behavior.
</span>In the scenario above, the speaker might have to consider whether the hostile attitude that he give to the other person is actually the reason why that person behave negatively and start to cut corners.
Answer:
Convenience sampling
Explanation:
In convenience sampling, the samples for the research is drawn from the population that is very easily accessible by the researchers rather than using a specific criteria.
From the description above we can see that the internet site use only its members as the samples. Since the data of the site's members is easily accessible for the site, we can consider it as convenience sampling.