PLEASE I DESPRITALLY NEED HELP In the lead-up to World War I, which countries made up the Triple Entente?

Great Britain, France, and Russia
Japan, Italy, and the United States
Spain, Switzerland, and the Netherlands
Germany, Austria-Hungary, and the Ottoman Empire

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.