Answer:
it is b
Explanation:
The 1900 Boxer Uprising in China. The Boxer Uprising was attempt by the members of a Chinese secret society to expel foreigners and foreign influence from China.
He is known for Gardner's theory of multiple intelligence. So the answer in this question is There are multiple intelligence. He is the one who also believes that musical ability is a type of intelligence. This theory of Howard Gardner was developed in 1983 and it differentiate intelligence into specific 'modalities', rather than seeing intelligence as dominated by a single general ability.
Survey is a sociological research method best used to study what cannot be directly observed such as attitudes and values among large number of people.