_______ many people have received the first dose of the COVID-19 vaccine in the US so far ?

a. One million
b. Two million
c. Three million
d. Four million

More than one million people have received the first of the two doses of the COVID-19 vaccine in the United States. The US officials expect to distribute almost 10 million doses of the two approved vaccines- Pfizer and Moderna- by the end of this week.