A cylinder has a radius of 5x + 2 and a height of 2x + 8. Which polynomial in standard form best describes the total volume of the cylinder? Use the formula V = π r²h for the volume of a cylinder.

A) 100π x⁴ + 880πx³ + 2256πx² + 1408πx + 256π
B) 50πx³ + 240πx² + 168πx + 32π
C) 20πx³ + 168πx² +384πx + 128π
D) 107x² + 44πx + 16π​