How do i use the kinetic molecular theory to describe matters behavior in each state?

In all living cells dna controls cellular activities by

Ineed to find the answer of this question because i dont understand it

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion