Directions:
In the question given below, 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, option 'No improvement' is the answer.

Question:
The poor villagers have waited in the bitter cold for more than 4 hours now.

Option A):
No improvement
Option B):
has been waiting
Option C):
have been waiting
Option D):
had waited

Correct Answer is Option C):
have been waiting