Nope, 2-B. Uncountable, infinity expanding is complete different to uncountable infinity. This is just 2-B and not very special in 2-B at that, several verses on the site have infinitely expanding mutliverses that lead to a countless (uncountable) number of Universes.
Be careful on your answer, it is obvious that the OP is refering to infinite set in Set Theory.
-Uncountable
-Set
-5-dimensional
-Multiversal+
Hence, is uncountably infinite.
Also, "uncountable" is far more common to cite on uncountable set, in contrary to "countless" which is commonly used to just describe a very large number on this site. You shouldn't nitpicked on comma and "expanding" because not all infinite expansions are ad infinitum in-context, like
eternal Inflation theory for instance.
Short answer: It's either 2-A above baseline or Low 1-C, Low 1-C in this site since our Tiering System used the
generalized continuum hypothesis.
Long answer: It's either 2-A above baseline or Low 1-C depends on whether how big the uncountable set is. The first uncountably infinite is aleph-1, so large that it can't be reached by aleph-0 (the smallest infinity) that doing bijection from one to another is provably impossible. So the question is, does aleph-1 equal to 1 dimension? We don't know exactly, aleph-1 would only be equated to 1 dimension if the
continuum hypothesis is usable, it is a hypothesis which asserted that there is no strict cardinality between
N aka cardinality of naturals (aleph-0) and
R, or the cardinality of reals which represented as a continuous line, real line, that geometrically correspond to 1 dimension which is a line itself.
So basically
N <
S <
R, that "
S" is nonexistent in here, so
N <
R and
R = aleph-1, hence uncountably infinite = 1 dimension.
If the continuum hypothesis is unusable then uncountably infinite isn't necessarily as large as 1 dimension since there is a strict cardinality before
R from aleph-0. This site used the first that the power set of
N or
P(
N) which defined the very subset of
N or say, infinite^(infinite) which is equal to
R, has the same size as the first uncountably infinite.