Which of the Following Is NOT a Consideration When You

Which of the following is NOT a consideration when you are trying to decide whether or not to double a final consonant before adding a suffix?

A) Is the word one syllable or accented on the last syllable?
B) Are the last three letters of the word consonant/vowel/consonant?
C) Does the suffix begin with a vowel?
D) Is the suffix made up of more than one syllable?