SECTION CNEWS BROADCASTDirections: In this section, you will hear several news items. List

SECTION C NEWS BROADCAST

Directions: In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow.

听力原文： Pakistan is working to protect more than thirty million children from polio. Health workers are giving vaccine against the disease to children younger than five years.

Health officials in Pakistan plan to complete the current vaccination campaign next month. But the government says efforts against polio are always in progress. The efforts are part of an international campaign to stop the disease.

How old children are given vaccine against polio in Pakistan？

A．4.

B．5.

C．6.

D．7.

请帮忙给出正确答案和分析，谢谢！