ANSWER - B
THE ANSWER IS COAL
Observational research is required to be conducted if someone wants to see whether, when seated next to their closest friends in the cafeteria, students were more likely to spill ketchup on themselves or not.
Moreo about Observational research:
In observational research, people and phenomena are observed in their most natural environments. Instead of using organised environments like study labs or focus groups, this allows researchers to observe how their participants make decisions and respond to circumstances in their everyday lives.
The study of non-experimental circumstances in which behaviour is observed and noted is referred to as observational research. The phrase "what really is going on or what's he doing" could also be used. The variables are neither controlled nor manipulated, hence the study is categorised as non-experimental.
Learn more about Observational research here:
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I’m not too sure. That’s a good question
Answer:
A folk musical instrument represents any of the places of caste and specific culture. Different caste has their own traditional culture and tradition and folk musical instruments also come along with them. By the way any specific caste plays the musical instruments we can recognize their caste and their place.
