Alex was invited to a formal dinner by his manager. He was not sure about the use of the different cutleries for each course. He watched the other diners seated beside him and followed their use of knives and forks. This is an example of .

The answer is modelling.

Explanation:

Modelling is a learning method that consists in observing and imitating other people's behaviour. Although it is more common in children, it is also present in adults when facing new situations.

The reproduction (or imitation) stage of modelling can be immediate or delayed. It may also be unconscious, something especially prominent in early chilhood.

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.

true