Select all factors that affect diffusion.

A Temperature ✓ ✗
B Type of medium ✓ ✗
C Pressure ✓ ✗
D Thickness of membrane ✓ ✗
E Thickness of membrane ✓ ✗
F Concentration gradient ✓ ✗
G Water ✓ ✗
H Density Surface area to volume ratio ✓ ✗
I Surface area to volume ratio ✓ ✗
J Size of molecules ✓ ✗