A migraine typically afflicts one side of the head, lasts for hours or days, and may
recur as infrequently as once every other month or often, as daily.
(A) as infrequently as once every other month or often, as
(B) as infrequently as once every other month or as often as
(C) infrequently, as often as once every other month, or often, like
(D) infrequently, like once every other month, or often, like
(E) infrequently, like once every other month, or as often as

IMO (B) parallelism

OA not provided