IT’S ABSURD! IN THE FIRST SECTION, THEY PRAISE US FOR PREVENTING A...

20. It’s absurd! In the first section, they praise us for preventing a “major epidemic” and in the next one they

write that we ________________ so many people.

A. needn’t have vaccinated

B. didn’t need to vaccinate

C. didn’t need vaccinate

D. needn’t to have vaccinated

Choose the underlined part among A, B, C or D that needs correcting.