(A). No.
(B). Yes.

Question: what is Polyester in packaging PET? Would "Its monomer (bis--hydroxyterephthalate) can be synthesized by the esterification reaction between terephthalic acid and ethylene glycol with water as a byproduct, or by transesterification reaction between ethylene glycol and dimethyl terephthalate with methanol as a byproduct." be a reasonable answer?
Answer:
(A).