B. are more advanced in their theory of the mind
Children who are bilingual by the age of 5 have a more advanced mind due to the fact that they could take in and learn that material at such a young age.
Systematic Observation is a method used to understand how a particular activity or task works. The researcher observes the stages of a process, the tools used, the difficulties that appear, the conversations and the results of the work.
From this method the conclusion is a consequence of the whole process so it is acquired, the whole process of analysis will lead to the conclusion.
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