Which Statement About the Macronucleus and the Micronucleus of Ciliates

Which statement about the macronucleus and the micronucleus of ciliates is correct?

A) The micronucleus transmits genetic information through mitosis and meiosis,while the macronucleus maintains routine cellular functions.
B) The macronucleus is diploid and the micronucleus is haploid.
C) The micronucleus is formed by fission of the macronucleus.
D) The macronucleus forms by the fusion of micronuclei from two different mating types.