Alkenes react with water in the presence of acid to form alcohols. Identify the steps involved in the mechanism of the reaction from the following :
a) Nucleophilic addition of hydroxide ion to alkene
b) Protonation of alkene by electrophilic attack of \(\mathrm{H}_3 \mathrm{O}^{+}\)
c) Electrophilic attack of \(\mathrm{H}_2 \mathrm{O}\) on carbanion
d) Nucleophilic attack of \(\mathrm{H}_2 \mathrm{O}\) on carbocation
e) Loss of \({ }^{\ominus} \mathrm{OH}\) to form an alcohol
f) Loss of \(\mathrm{H}^{\oplus}\) to form an alcohol

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.