With no explanation, chose the best option from "A", "B", "C" or "D". and TILA Subclass members are also Payday Loan Subclass members. See Brief at 3-4. The only reason that the TILA and EFTA Subclasses are so much smaller than the other subclasses is because the TILA and the EFTA both have one-year statutes of limitations, which restrict the number of proposed class members who have valid claims under these statutes. See Brief at 3-4. Although it is said that there is “no set formula,” Rex v. Owens, 585 F.2d at 436, or “strict numerical test” for determining when a class is sufficiently numerous for joinder to be impracticable, Bittinger v. Tecumseh Prods. Co., 123 F.3d at 884 n. 1, the reality is that a per se numerosity threshold seems to exist somewhere south of 150 proposed class members, see Mullen v. Treasure Chest Casino, LLC, 186 F.3d at 624 (<HOLDING>); Anderson Living Trust v. WPX Energy Prod.,

A: holding that 100 to 150 members  is within the range that generally satisfies the numerosity requirement
B: recognizing that substantial numbers usually satisfy the numerosity requirement
C: holding that a potential class of 256 members did not satisfy numerosity
D: recognizing that in determining numerosity the proper focus is not on numbers alone but on whether joinder of all members is practicable in view of the numerosity of the class and all other relevant factors
A.