The main aim of sub-culture is to expand the number of cells or microorganisms in the respective culture. The example of sub-culture does not include the all of the above cultures. Therefore, correct option is D.
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What is Sub-culture means?</h3>
A sub-culture is defined as the culture in which the people have to separate itself from the main culture. This sub-culture helps to maintain the own culture and beliefs.
Therefore, Options A, B, and C from the question given are ethnic enclaves. These are ethnic groups that normally focused on a particular area.
Therefore, correct option is D.
Learn more about San Francisco's culture, refer to the link:
brainly.com/question/17250173
