Kgosi Is Trying to Get His Grandson to Learn the Word

Multiple Choice

Kgosi is trying to get his grandson to learn the word 'apple'. His attempt involves showing his grandson an image of an apple on his smartphone, making sure that his grandson is also looking, and then saying 'apple'. Kgosi's effort to teach his grandson is clearly based on

A) infant-directed speech.
B) the innate orienting response.
C) fast mapping.
D) joint attention.