Answer the question on basis of passage given below:

A ketone [A] which undergoes haloform reaction gives compound [B] on reduction. Compound [B] on heating with sulphuric acid gives compound [C] which forms monozonide [D]. The compound [D] on hydrolysis in the presence of zinc dust gives compound [E]. Compound [E] on oxidation gives \(C_2H_4O_2\)[F]

The compound [C] formed can be prepared from reaction of alc. \(KOH\) with:

The correct answer is option 1.

From the given data in the passage the various reactions and be depicted as:

The compound C is propene. The only compound in the options that can react with alc. KOH to produce propene is option 1, i.e., 1-Chloropropane. The reaction will follow elimination mechanism: