Which Statement Best Describes Passive Transport

Multiple Choice

Which statement best describes passive transport?

A) A substance goes from an area of low concentration to an area of high concentration, and this releases energy.
B) A substance goes from an area of high concentration to an area of low concentration, and this requires energy.
C) A substance goes from an area of low concentration to an area of high concentration, and this requires energy.
D) A substance goes from an area of high concentration to an area of low concentration, and this releases energy.