Research shows that an infant can understand words that refer to body parts, such as "hand" but they cannot yet speak these words. this is an example of

Receptive

Explanation:

Receptive skills refers to the communication ability that  people gets since we born to understand the message that other people trying to give.  This can be seen in the way we communicate with an infants.

They technically cannot speak or understand the meaning of the word 'hand'. But, if their parents say the word 'hand' over and over gain while raising their  hands, overtime the baby will start to associate that word with hands and will raised their hands every time their parents say the word.

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