Which of the following is the minimum tax rate applicable to foreign companies operating in air, sea, and telecommunication businesses in Nigeria?
A. 20%
B. 10%
C. 7½%
D. 5%
E. 2%

C. 7½%

Explanation:
Foreign companies operating in specific sectors, such as air, sea, and telecommunications, are subject to a minimum tax rate of 7½% on their gross turnover in Nigeria. This rate ensures that such companies contribute a minimum level of tax revenue regardless of their profit levels.