in the case of an individual who enrolls during a special enrollment period under paragraph (7)—
(A)#
in any month of the special enrollment period in which the individual is at any time enrolled under section 1395mm of this title with an eligible organization or in the first month following such a month, the coverage period shall begin on the first day of the month in which the individual so enrolls (or, at the option of the individual, on the first day of any of the following three months), or
(B)#
in any other month of the special enrollment period, the coverage period shall begin on the first day of the month following the month in which the individual so enrolls; and