When Choosing Between One-Tailed and Two-Tailed Tests

Multiple Choice

When choosing between one-tailed and two-tailed tests,

A) use a one-tailed test only if you have a convincing reason for predicting the direction.
B) always use two-tailed tests.
C) use a two-tailed test only if you have a convincing reason for not predicting a direction.
D) use the one that is most likely to produce significant results.