Craft one correct answer to the question given in input. To make it more interesting, try to use non-stereotypical language if possible. Make sure your correct answer is reasonably long, consistent with the context, and requires common sense (instead of explicit extraction from the context.) In your answer, use as few words as possible from the given context. Use a response that is uncommon/non-stereotypical, so that it is less predictable. To be less repetitive, please vary your language for each question.
Q: Context: My mum wants to get rich which is why she got in to the property developing business . She has four properties all with a mortgage , one being the dream house my dad lives in , two she is renting out and the rent just covers the mortgage rates , and the fourth she lives in herself since splitting with my dad . Last year she was rushed to hospital with heart failure , now this was n't a clot that could be removed , this was something rare where her heart shrunk and would not pump .
Question: What drives the mother 's income levels ?
A:
Real Estate .