Answer:
B
Explanation:
A command economy, where a government has full control of the production of goods and services, best fits this scenario.
A clinical trail
Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans. These studies also may show which medical approaches work best for certain illnesses or groups of people. - Definition by <span>https://www.nhlbi.nih.gov/studies/clinicaltrials</span>
Answer: norepinephrine
Neurotransmitters are chemical messengers in the brain that are the means by which brain cells communicate with each other. New drugs like venlafaxine are called <em>serotonin-norepinephrine reuptake inhibitors</em>, and their function is to target two main neurotransmitters: serotonin and norepinephrine, which are the main neurotransmitters associated with depression.
The correct answer to your question is A (Magna Carta)
