Hi Viktor, The position of "enough" depends on how the sentence is written. "Enough" is used before a noun: "You have enough money." In this case, "enough" is considered a determiner that defines "money" which is a noun. Just as a side discussion, "enough" is used after adjectives and adverbs. Examples: He isn't competent (adj) enough (adv) for the job. / Mysteriously (adv) enough (adv), the doors were all locked. I hope this helps.

B). Here enough is being used as an adjective so it comes before the noun "money". Enough can also be used as an adverb in which case it comes after the adjective it modified. "Is it cold enough".