Which of These Statements Is Correct About One- and Two-Tailed

Multiple Choice

Which of these statements is correct about one- and two-tailed tests?

A) A statistical model that tests a directional hypothesis is called a one-tailed test, whereas one testing a non-directional hypothesis is called a two-tailed test
B) A statistical model that tests a non-directional hypothesis is called a one-tailed test, whereas one testing a directional hypothesis is called a two-tailed test.
C) A two-tailed test is a more powerful test than a one-tailed test.
D) A one-tailed test is a more accurate test than a two-tailed test.