Answer: B.) Correlational
Explanation: Research search studies carried out or performed in other to identify if an association or relationship exists between two variables are called Correlational studies. Correlational studies aims to determine if there is a positive, negative or no relationship exists between the variables used for the research. In the scenario above, the researcher aims to establish if there is a relationship between alcohol use and income level between it's subjects of 40 year old men. A positive relationship exist if income level increase inn individuals with high alcohol us and a negative relationship exists if income level is low in individuals with high alcohol use and vuce versa. No relationship exist when the correlation coefficient is 0