(A) Except as provided in subparagraphs (B), (C), and (D), households shall have their incomes calculated on a prospective basis, as provided in paragraph (3)(A), or, at the option of the State agency, on a retrospective basis, as provided in paragraph (3)(B).

(B) In the case of the first month, or at the option of the State, the first and second months, during a continuous period in which a household is certified, the State agency shall determine eligibility and the amount of benefits on the basis of the household’s income and other relevant circumstances in such first or second month.

(C) Households specified in clauses (i), (ii), and (iii) of section 2015(c)(1)(A) of this title shall have their income calculated on a prospective basis, as provided in paragraph (3)(A).

(D) Except as provided in subparagraph (B), households required to submit monthly reports of their income and household circumstances under section 2015(c)(1) of this title shall have their income calculated on a retrospective basis, as provided in paragraph (3)(B).