Fone knew nothing more than that a person with intellectual disability also had extensive and severe neurological dysfunction and physical handicaps, the most likely estimate of that person's level of intellectual disability would be

The answer is: Deep intellectual disability / multi-disability.

Explanation:

Deep intellectual disability / multi-disability.

They usually have a limited level of awareness and emotional development, no or little communicative intent, lack of speech and serious motor difficulties. The level of autonomy, if it exists, is very small.

The answer is: Deep intellectual disability / multi-disability.

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