A diagnosis of mental retardation means that a child

A. Can't read or write at a functional level
B. Needs serious learning support in mental ability and behaviour

Please help.

My answer is B.

B is not correct!

Behavior is not usually a part of mental retardation.

You are correct, a diagnosis of mental retardation typically means that a child needs serious learning support in mental ability and behavior. However, it's important to note that the term "mental retardation" is no longer widely used in the medical and educational fields. Instead, the term "intellectual disability" or "intellectual developmental disorder" is now preferred.

To determine the correct answer to your question, one could refer to reputable sources such as diagnostic manuals like the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) or consult with professionals in the field, such as psychologists or special education experts. These sources provide specific criteria for diagnosing intellectual disabilities, which typically involve limitations in intellectual functioning (such as reasoning, problem-solving, and learning) and adaptive behavior (such as communication, social skills, and daily life activities).

By referring to these diagnostic criteria and consulting with professionals, one can gather accurate information and determine that a diagnosis of mental retardation, or intellectual disability, often means that a child requires significant support in their mental ability and behavior, as indicated by your answer choice B.