(2) if substantially the same act or omission for which notice was given recurs within six months, the landlord may terminate the rental agreement in accordance with the provisions of sections 47a-23 to 47a-23b , inclusive. For the purposes of this section, “serious nuisance” means (A) inflicting bodily harm upon another tenant or the landlord or threatening to inflict such harm with the present ability to effect the harm and under circumstances which would lead a reasonable person to believe that such threat will be carried out, (B) substantial and wilful destruction of part of the dwelling unit or premises, (C) conduct which presents an immediate and serious danger to the safety of other tenants or the landlord, or (D) using the premises or allowing the premises to be used for prostitution or the illegal sale of drugs or, in the case of a housing authority, using any area within fifteen hundred feet of any housing authority property in which the tenant resides for the illegal sale of drugs. If the landlord elects to evict based upon an allegation, pursuant to subsection