Which describes the process of impeachment correctly? A. By a simple majority, the House of Representatives must vote for the impeachment of a federal official. The Senate then holds a trial.

B. By a two-thirds majority, the Senate must vote for impeachment of a federal official. The house then holds a trial.

C. By a simple majority, the Senate must vote for the impeachment of a federal official. The Supreme Court then holds a trial.

D. The Supreme Court must agree unanimously to impeach a federal official. Then by a two-thirds majority, both Houses of Congress must vote for impeachment.

How have the changes in china's laws affected its economy?

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

Can someone me with these 2 questions? and tell me why it is the correct answer?