Answer:
D. All of the above
Explanation:
Randomized controlled trial is best explained as a study during which people are allocated randomly (by chance alone) to receive one among several clinical interventions. one among these interventions is that the standard of comparison or control. The control could also be a typical practice, a placebo ("sugar pill"), or no intervention in the least . Someone who takes part during a randomized controlled trial (RCT) is named a participant or subject. RCTs seek to live and compare the outcomes after the participants receive the interventions.
In sum, RCTs are quantitative, comparative, controlled experiments during which investigators study two or more interventions during a series of people who receive them in random order. The RCT is one among the only and most powerful tools in clinical research.
The 1st Amendment, it gave us the freedom of speech, religion, petition, press, and assembly.
It has been theorized that increased awareness of death, called mortality salience, leads people to have lighter penalties to those who break moral cultural traditions, respond more positively to people who criticize their country, show disrespect for cultural icons, such as flags. give larger rewards to people who uphold cultural standards.
Signed in 1863, the Emancipation Proclamation freed all slaves in the United States.
I believe it was called Feudalism :) I hope this helps!
