Butanol-1 is formed as a result of the interaction of 1) butanal with water 2) butene-1 with an aqueous alkali solution

Butanol-1 is formed as a result of the interaction of 1) butanal with water 2) butene-1 with an aqueous alkali solution 3) 1-chlorobutane with an aqueous alkali solution 4) 1,2-dichlorobutane with water

Of the options proposed, only the reaction of 1-chlorobutane with an aqueous alkali solution corresponds.
CH3-CH2-CH2-CH2-Cl + NaOH (H2O) = CH3-CH2-CH2-CH2-OH + NaCl.
Other options for butanol-1 production.
From butanal:
CH3-CH2-CH2-CH = O + H2 (Ni) = CH3-CH2-CH2-CH2-OH.
From butylamine:
CH3-CH2-CH2-CH2-NH2 + HNO2 = CH3-CH2-CH2-CH2-OH + N2 + H2O.