The correct options are
C BF3>Me3B
D HC≡C−H(spcarbon)>H2C=CH−H(sp3carbon)>H3C−CH2−H(sp3carbon)
Select the correct order of acidic strength is BF3>Me3B
Thus, the option A is correct and option C is incorrect.
Select the correct order of acidic strength is HC≡C−H(spcarbon)>H2C=CH−H(sp3carbon)>H3C−CH2−H(sp3carbon)
Thus, the option D is correct and option B is incorrect.