Actually the correct answer is D. tendrá. Because A would be if you were talking about yourself. B would be if you were taking about a group including yourself, and C would be right if you were talking about a group not including yourself.
Yo vendo un apartamento grande con cuatro recámaras y un baño. El apartamento cuesta dos millones trecientos cuarenta y cinco mil francos y tiene una cocina, una sala, una oficina pequeña y un balcÓn.
