Which statement BEST describes a difference between a presidential system of democracy and a parliamentary system of democracy?
A) The president acts as head of state in a presidential system ONLY.
B) The prime minister is elected directly by popular vote in a parliamentary state ONLY.
C) The prime minister acts as head of the national government in a parliamentary state ONLY.
D) The president is chosen by members of the Legislative Branch in a presidential system ONLY.

Doing the text now can someone me

Article 11 of the constitution defines the role of?

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.