Step 1: Concept
Hydroboration-oxidation is an addition reaction that adds water across a double bond.
Step 2: Meaning
This reaction proceeds with Anti-Markovnikov regioselectivity.
Step 3: Analysis
In propene ($CH_3-CH=CH_2$), the -OH group adds to the less hindered, terminal carbon.
Step 4: Conclusion
The product is 1-propanol.
Final Answer: (A)