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A group of American settlers in California who rose up to the Mexican government and declared California and Independent republic.
Answer:
a) Internet surveys
Explanation:
Survey data collection is used in empirical research in social sciences, marketing, and official statistics. There are various methods by which survey data can be collected but the cheapest is internet surveys.
Internet surveys can be delivered to anyone anywhere in the world in a matter of seconds. The survey can be filled by a person at a time of their convenience. There are free survey creation tools widely available online. The entire process does not involve the use of paper.
Hence, Internet surveys are the cheapest and quickest method of collecting survey data.