Henrietta's 11-year old son sucks his thumb. He has gotten teased for it, and even gotten sick once because there was bacteria-laden dirt underneath his thumbnail. She asks for advice on how to help him stop. A friend suggests using a cream she saw online that has a bitter taste to it. Henrietta simply rubs the cream on his thumb before he watches TV at night or goes to bed. What type of conditioning treatment is Henrietta employing?

Aversive conditioning.

Explanation:

Aversive conditioning is when something unpleasant action is given to someone for unwanted behavior. In other words, aversive conditioning is the conditioning of behavior by using 'punishments' or 'negative' approach to make the person give up or deflect from that particular behavior.

Henrietta's approach of following her friend's suggestion to use a bitter-tasting cream to make her son stop sucking his thumb is an example of aversion conditioning. The use of the bitter cream allows the son to stop his bad or unwanted behavior of sucking his thumb.

muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."