I believe the answer is C. blood vessels.
Answer:
In instrumental conditioning,the distinction between negative reinforcement and punishment is that " Negative reinforcement occurs when a negative outcome is avoided, while punishment occurs when an action causes a negative outcome."
Explanation:
Instrumental conditioning also known as Operant conditioning this is a theory where associative learning process through which the strength of a behavior is modified by reinforcement or punishment. It is also a procedure that is used to bring about such learning.
Where are the answer choices to this question ?
Answer: 6 Months
Explanation: A average baby is ready to start eating mashed food when they are about 6-7 months.