Correct Answer:
B. Punjab
Explanation:
The North-West Frontier Province (NWFP, now renamed Khyber Pakhtunkhwa) was originally managed as part of the larger Punjab province under the British East India Company and British Raj administrations.
### Important Facts:
- Separation Year: Separated from Punjab in 1901 by the Viceroy, Lord Curzon, due to administrative and strategic frontier challenges.
- Renaming: In 2010, the 18th Constitutional Amendment officially renamed NWFP to 'Khyber Pakhtunkhwa' (KP).
- Tribal Areas: FATA was later merged into KP via the 25th Amendment in 2018.