In the following sentence, a part of the sentence is underlined. Below are given alternatives to the underlined part, which may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose the alternative that indicates 'No improvement'.
Ravindra locked the door, ensuring Rajni that their dog wouldn’t be able to wander out during the night.
A. Assuring Rajni that their
B. Assuring Rajni that his
C. Insuring Rajni that their
1
Only A
2
Both A and B
3
Only B
4
Both B and C
5
No improvement