In 2024, the population of the United Kingdom was approximately 70 million. According to a randomized poll, 60% of the poll respondents approved of the country's leadership. If the poll participants were representative of the entire population of the United Kingdom, approximately how much of the population, in millions of people, approved of the country's leadership?
a) 42 million
b) 48 million
c) 50 million
d) 52 million