The following are questions about the Black Death; please choose all that apply. Select one or more: a. Use of quarantine of active cases helped prevent spread of disease. b. Successful prevention measures included insecticides and repellants. c. Example of a pandemic. d. Responsible for a dramatic decrease of the population in Europe (millions dead). e. Caused by flea bites from infected rats. f. Was stopped by successful vaccination against Yersinia Pestis. g. Caused by misquitoes and infected birds. h. Occurred during the middle ages.