I don't know what your answer choices were but "stingy" sounds like a good word to fit in the sentence.
Help in Portuguese please
When you see gaps in your knowledge or understanding it is necessary to investigate further after you have organized your notes (option B).
<h3>What is a complementary investigation?</h3>
A complementary investigation is a type of investigation that has the purpose of complementing the information that is already available on a particular topic.
The complementary investigations are to add information on the topics of which there is less knowledge or understanding.
According to the above, option B is the correct option because the complementary research is done to delve into a topic that is not widely known or understood.
Learn more about understanding in: brainly.com/question/24499826
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