I want to know the answer to the following question:
Investment in what greatly accelerated the outward suburban sprawn and declining inner city population?
All the background I'm provided with is that "To counter the trend towards low-density suburban residential growth, the government began a series of controversial public housing projects in the inner city by the Housing Commission of Victoria, which resulted in demolition of many neighbourhoods and a proliferation of high-rise towers.". Is that enough to answer the question?
Answer: no