The answer is: B
Explanation
The correct option is B : Alien enemies residing in India may sue with the permission of the Central Government.
This is according to Section 83 of the Code of Civil Procedure, 1908, which defines alien enemies as those residing in a foreign country that is at war with India, or carrying on business in that country without a licence from the Central Government. Alien friends, on the other hand, are those who are not at war with India, and they can sue in any court as if they were citizens of India. Alien enemies residing in India without the permission of the Central Government, or residing in a foreign country, cannot sue in any court in India. Therefore, options A, C, and D are incorrect.