Need help with C

The 2010 Census for a particular region gives an age distribution approximated by f(x) = - 0.72x + 34x + 3926, where x is age in years and f(x) gives the number of people in thousands who are of age x. The population of an age group in the region can be found by integrating this function over the interval for that age group. Answer parts (a) through (c) below. vvnal does tus integral represen? A. The total number of people in the region under 9 years old was about 316,080 in 2010. B. The total number of people in the region aged 0 to 90 was about 316,080,000 in 2010. O C. During the years 0 through 2010, a total of approximately 316,080,000 people, aged 0 to 90, have lived in the region. OD. The number of people in the region increased by about 316,080 people aged 0 to 90 in 2010. 50 ( b ) Find f ( x ) dx . 40 39920 thousand (Round to the nearest integer as needed.) What does this integral represent? A. The total number of people in the region aged 40 to 50 was about 39,920,000 in 2010. O B. During the years 0 through 2010, a total of approximately 39,920,000 people, aged 40 to 50, have lived in the region. O C. The total number of people in the region under 40 years old was about 39,920 in 2010. O D. The number of people in the region increased by about 39,920 people aged 40 to 50 in 2010. (c) The Millennial Generation (also known as Generation Y) includes people who were between 10 and 30 years old at the time of the census. Find the number of Millennials in the region. thousand Round to the nearest integer as needed.)