Which of the Following Statements Is Correct

Multiple Choice

Which of the following statements is correct?

A) If your hypothesis is two-tailed then you must use planned contrasts, whereas if you have a one-tailed hypothesis, you would use post hoc contrasts.
B) If your hypothesis is one-tailed then you must use planned contrasts, whereas if you have a two-tailed hypothesis, you would use post hoc contrasts.
C) If your hypothesis is one-tailed then you must use Bonferroni correction, whereas if you have a two-tailed hypothesis, you would use post hoc contrasts.
D) If your hypothesis is one-tailed then you must use planned contrasts, whereas if you have a two-tailed hypothesis, you would use Bonferroni contrasts.