Which Biochemical Event Does Not Take Place During Thyroid Hormone

Multiple Choice

Which biochemical event does not take place during thyroid hormone synthesis?

A) One monoiodotyrosine molecule combines with one di-iodotyrosine molecule to form one tri-iodothyronine molecule.
B) Two iodine molecules combine with one tyrosine molecule to form one di-iodotyrosine molecule.
C) Two di-iodotyrosine molecules combine to form one molecule of thyroxine.
D) Four iodine molecules combine with one tyrosine molecule to form one tetraiodothyronine molecule.
E) None of the above take place