I want to know the answer to the following question:
What was the primary cause of the cholera outbreak in 19th century London?
All the background I'm provided with is that "London was bombed by the Germans during the First World War while during the Second World War, the Blitz and other bombings by the German Luftwaffe, killed over 30,000 Londoners and destroyed large tracts of housing and other buildings across the city.". Is that enough to answer the question?
Answer: no