This question is missing the options. I've found the complete question online. It is as follows:
In numerous cultures, a family’s only wealth is represented by the number of children they have. This demonstrates how ________ can deter population control.
government welfare schemes
cultural attitudes
financial benefits
biological factors
poor enforcement mechanisms
Answer:
This demonstrates how cultural attitudes can deter population control.
Explanation:
The question itself provides the answer. It claims that, in some cultures, wealth is equivalent to the number of children. Therefore, it is the same as claiming that, in some places, having children is a cultural attitude associated with status. Such a cultural attitude can deter (stop) population control, since people feel motivated, by the culture in which they are inserted, to have (many) children. It will be harder to convince these people, to change their culture, so to speak, and have them reduce the number of children couples have than it would be in cultures where children and wealth are not associated.