Your neighbor john has a barking dog. which of the following statements is true? a. it does not create any externalities because you do not own the dog. b.it does not create any externality because john bought the dog from a shelter. c.it can create negative externalities by disrupting your sleep and can also create positive externalities by discouraging intruders. d.it creates only a negative externality by disrupting your sleep.

Amaster's degree candidate needs to conduct a research project for her master's thesis. she is interested in the types of junk food available to the public. she plans on going to the local convenience stores and asking the owners what types of junk food the store normally stocks and which are the biggest sellers. identifiers will not be collected. this study would fall under which of the following? a. expedited review b. exempt review c. full board review d. not human subjects