Nature of replacement tenancies
17The new tenancy is to be—
(a)a secure tenancy if—
(i)the original tenancy was a secure tenancy, or
(ii)the original tenancy was an introductory tenancy but no election by the ex-landlord under section 124 of the Housing Act 1996 (c. 52) is in force on the day on which the new tenancy arises,
(b)an assured shorthold tenancy if the original tenancy was an assured shorthold tenancy,
(c)an assured tenancy which is not an assured shorthold tenancy if the original tenancy was a tenancy of that kind,
(d)an introductory tenancy if the original tenancy was an introductory tenancy and an election by the ex-landlord under section 124 of the Housing Act 1996 is in force on the day on which the new tenancy arises,
(e)a demoted tenancy to which section 20B of the Housing Act 1988 (c. 50) applies if the original tenancy was a demoted tenancy of that kind, and
(f)a demoted tenancy to which section 143A of the Housing Act 1996 applies if the original tenancy was a demoted tenancy of that kind.