Which of the Following About Religion in Nigeria Is NOT

Which of the following about religion in Nigeria is NOT true?

A) Nigeria's population is roughly split between Islam and Christianity, although some traditional belief systems persist.
B) Religious tensions have been most volatile in the Middle Belt region of the country.
C) The major Christian denomination in Nigeria is Catholicism.
D) Religious identities generally are associated with ethnic identities in Nigeria.
E) Religious cultures have consistently clashed over political issues such as the secular character of the state.