The individual being subjected to emotional abuse among the options provided is:
b. A 12-year-old, who does not interact much with people as their parents often criticize them and call them a “good-for-nothing.”
This scenario indicates emotional abuse due to the negative impact of criticism and labeling on the child's self-esteem and social interactions. Options a and d involve different situations (neglect in the case of option a and potentially another form of abuse or disciplinary action in option d), while option c describes neglect rather than emotional abuse specifically.