<prompt> IQ 35-47; classified according to WHO isMild mental retardationModerate mental retardationSevere mental retardationProfound mental retardation  <response>: Moderate mental retardation 502- Park 2fhWHO gave the following classification of mental retardationMild mental retardationIQ 50-70Moderate mental retardationIQ 35-49Severe mental retardationIQ 20-34Profound mental retardationIQ Under 20. 