3.In folic acid-dependent carriage of a one-carbon group: (A)the formation of the methyl group of thymineinvolves a direct transfer from methyl THF(B) the first entry of carbons into the THF pool is viamethylene THF(C)carbons are fixed at the oxidation level at whichthey enter the pool(D) the only acceptor for the methyl form ishomocysteine(E) carbons are always carried on nitrogen 10 of thepteridine ring.