A marketing researcher has access to millions of transactions for the ride-sharing app, Uber. After exploring the data, she hypothesizes that more talkative drivers receive lower ratings. To be sure, she conducts an experiment where she will compare the ratings between a very talkative and a very untalkative driver. Which types of marketing research is she conducting? Transactional and descriptive Exploratory and descriptive Descriptive and causal Exploratory and causal