The answer is: B. <span>negative reinforcer; positive reinforcer
Negative reinforcer refers to the type of stimulus that act as a punishment that discourage an individual from making a certain response/action.
Positive reinforcer on the other hand is a type of stimulus that act as a reward that encourage an individual to do a certain action.</span>
The answer is, she most likely to live with her eldest son. In addition to late adulthood, According to socioemotional selectivity theory, shrinking social networks in adulthood are by choice. The older adults make the most of their emotional well-being by becoming progressively selective in their social contacts and interventions to control whether cognitive debility can be prohibited or even upturned caused in substantial development for a substantial proportion of individuals.
Because, salt was needed to flavor food, preserve meat, used for medical<span>
purposes, and to keep the body healthy. But in West Africa, salt was a rare. So,</span><span>West Africans traded their gold for salt. (Salt was so valuable, it was worth </span><span><span>its weight in gold. 1 pound of salt = 1 pound of gold.) Hope this helps!!</span>
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