The English Partnership Act (1890) is still applicable in:

A. Lagos State
B. Oyo State
C. Osun State
D. Ondo State
E. Sokoto State

E. Sokoto State
Explanation:
The correct answer is E because the English Partnership Act (1890) is still applicable in Northern Nigeria, including states like Sokoto. It was part of the legal system adopted from British colonial rule and is still in force in regions that have not specifically repealed or replaced it.