One's because One is the subject, so therefore whatever is being talking about, is possessive to them, therefore 's.
D) Relationships
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The answer is A. Emotional Regulation.Children between two to six years old should learn a complex process that he/she involves modulating one’s state or character in a given certain situation, inhibiting, initiating – just like the personal experience of feeling the cognitive responses through thoughts – an emotion-related physiological response.
Answer:
A. A number equal to the state's number.
Explanation: