Which of the Following Statements About Basidiomycetes Is True

Which of the following statements about basidiomycetes is true?

A) Basidiomycetes include important biotrophic plant pathogens, such as rusts, which manifest specialised structures, such as appressoria and haustoria, to overcome plant defences and exploit their hosts.
B) Basidiomycetes lack the dolipore septa of ascomycetes.
C) The vegetative mycelium of basidiomycetes is haploid and multinucleate and has septa with simple pores.
D) The life cycle of basidiomycetes differs from that of ascomycetes. While both groups have delayed karyogamy, the dikaryon is only found in the basidiocarp of basidiomycetes.
E) Basidiomycetes lack the clamp connections formed in mitotically dividing cells, which preserves the dikaryon observed in ascomycetes.