Synthesis of propan-1-ol requires specific reagents for the shown steps Steps:

• Identify the starting material and target product from the diagram (assumed to be an unsaturated compound leading to propan-1-ol).
• Determine step 1 reagent must hydrolyze or functionalize to an intermediate reducible to primary alcohol.
• Evaluate step 2 for selective reduction to propan-1-ol without side products.
• Match choices to standard organic transformations for primary alcohol synthesis.

Not enough information: The diagram of the synthesis is missing, making reagent selection ambiguous.

Why B is correct: Not applicable due to missing diagram.

Why the others are wrong:

• A: HCl(aq) adds Markovnikov to alkenes, yielding secondary halide unsuitable for propan-1-ol.
• C: Identical to B, but if distinct, assumes incorrect reduction conditions.
• D: NaBH4 reduces aldehydes/ketones but not alkenes/alkynes effectively for this path.

Final answer: Not enough information.