17. From each pair pick the compound with the higher boiling point. (i) ① acetic acid or ② propanoic acid (ii)③ n-pentane or ④neopentane (iii)⑤ methane or ⑥ methyl chloride (A)①③⑤ (B)①④⑤ (C)②④⑥ (D)②③⑥ (E)①④⑥