A Transaldolase Is an Enzyme That Catalyzes

A transaldolase is an enzyme that catalyzes:

A) transfers of three-carbon units from a ketose to an aldose.
B) isomerization of ketoses into aldoses such as the conversion of ribulose-5-phosphate to ribose-5-phosphate.
C) epimerization of ketoses such as the conversion of xylulose-5-phosphate into ribulose-5-phosphate.
D) TPP-dependent transfer of 2-carbon units to the recipient aldose.
E) transfer of keto groups from C-2 to C-3 of a ketose.