The abdominopelvic cavity.
Answer: becoming involved in the political affairs of other countries btw download the app Socratic this app will help you out with a bunch of problems in school classes!
Explanation:
The question is about the limitation of research method.
There are many methods used for research purpose. There can be interviews, focus groups, observations, sampling questionnaires and others.
The limitation of focus group is that it is an expensive method and is sometimes biased.
The results obtained from this research method can be biased and does not reflect the true situation.
The correct answer b. Observer Interference.
This means that observer might change his behavior because he is being watched and observed.
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I believe it represents a negative acceleration
but i might be wrong as well
