In the following questions, a sentence/part of the sentence is printed in bold. Below are given alternatives to the bold sentence/part of the sentence which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is No improvement.
My sister does not know whether tomorrow can be a holiday for her.
whether tomorrow is a holiday to her
whether tomorrow will be a holiday for her.
No improvement
No improvement
D.
No improvement