" As per classification of Mental Retardation based on what IQ score, a person is considered as profoundly mentally retarded?

Correct option is B

A person is considered profoundly mentally retarded if their IQ score falls below 20. This is the most severe form of intellectual disability, characterized by significant impairments in functioning and requiring intensive support for daily activities. Individuals with profound mental retardation often have considerable developmental delays and need continuous assistance with self-care, mobility, and communication.
Information Booster:
The classification of mental retardation, now more commonly referred to as intellectual disability, is typically based on IQ scores and the level of functional limitations. The levels are generally divided as follows:
· Mild: IQ 50-70
· Moderate: IQ 35-50
· Severe: IQ 20-35
· Profound: IQ below 20
People with profound mental retardation often require lifelong care and supervision, and they may have physical disabilities and medical conditions in addition to intellectual challenges.
Additional Knowledge:
(a) 50: An IQ score of 50 would place an individual in the mild to moderate range of intellectual disability, where some level of independent functioning may be possible with support.
(c) 35: An IQ of 35 is classified as severe mental retardation. Individuals in this range have significant impairments but may still develop some basic self-care skills with help.
(d) 70: An IQ score of 70 typically represents the upper boundary of mild intellectual disability. People in this range may live relatively independently with some support, especially in areas requiring abstract reasoning or complex problem-solving.