To spell the word occurrence, why is the final consonant doubled before adding the suffix?
a. because the stress is on the second syllable of the base word ending in consonant + vowel + consonant
b. because the base word ends with two vowels before the final consonant
c. because the base word ends in two consonants
d. because the suffix begins with a consonant

The answer to your question would be that to spell the word occurrence, the final consonant is doubled before adding the suffix because the stress is on the second syllable of the base word ending in consonant+ vowel + consonant.

You should always double the r for words of more than one syllable when the final r is preceded by a vowel. The following ones are other examples of this rule: concurrence, deterrent and referral.

well the central charater is kaneki so kaneki but in tokyo ghoul re kaneki has a new persona so i guess his new persona trying to be stronger

do you have a picture of the cartoon?