JEE Main 2020 Chemistry question

Consider the following reactions : (a) (b) (c) (d) \mathrm{(CH_3)_2C(OH){-}CH_2{-}CHO} \xrightarrow{\Delta} Which of these reactions(s) will not produce Saytzeff product ?

• (A)(d) only
• (B)(c) onlyCorrect
• (C)(b) and (d)
• (D)(a), (c) and (d)