Cho các chất sau: HCOOH, (CH3)

Câu hỏi: Cho các chất sau: HCOOH, (CH₃)₂CHCOOH, CH₂=CHCOOH, C₆H₅COOH.

A. axit fomic, axit propinoic, axit propenoic, axit benzoic

B. axit fomic, axit iso-butiric, axit acrylic, axit benzoic

C. axit fomic, axit 2-metylpropinoic, axit acrylic, axit benzoic

D. axit fomic, axit 2-metylpropanoic, axit acrylic, axit phenic