The rule capitalises 'e' and every alternate letter counting onward from 'e' in the alphabet, giving the capital set e, g, i, k, m, o, q, s, u, w, y, while every other letter stays lower-case. The month asked for is the sixth month counting from March: April (1), May (2), June (3), July (4), August (5), September (6), so the target word is 'september'. Applying the rule letter by letter gives S, E, p, t, E, M, b, E, r, that is 'SEptEMbEr'. Let's check each option against this:
Only option B applies the rule consistently to every letter of 'september'.
Therefore, the correct answer is SEptEMbEr.
The rule can be restated as a position test: numbering the alphabet A = 1 through Z = 26, a letter is capitalised only if its position is odd AND at least 5, that is positions 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 (e, g, i, k, m, o, q, s, u, w, y), every other position stays lower-case. The sixth month counting from March, April (1), May (2), June (3), July (4), August (5), September (6), is September, so the base word is 'september'. Testing each letter's position against the rule: s = 19 (odd, >= 5, capital), e = 5 (odd, >= 5, capital), p = 16 (even, lower), t = 20 (even, lower), e = 5 (capital), m = 13 (odd, >= 5, capital), b = 2 (even, lower), e = 5 (capital), r = 18 (even, lower), giving S, E, p, t, E, M, b, E, r.
Only option B has every letter's case matching whether its alphabet position is odd and at least 5.
Therefore, the correct answer is SEptEMbEr.