Infantile amaurotic idiocy $(Tay-Sachs disease)$ is

  • A

    The result of severe protein deficiency in diet and damages the muscle development in growing children

  • B

    An inherited disorder in which the spinal cord and brain are severely damaged within a few months of birth leading to paralysis and mental retardation, and finally the infant's death in $3$ or $4$ years

  • C

    A genetic abnormality which appears at the age of $25-30$ years and damages the bones

  • D

    A chromosomal disorder in young children

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