Which statement best describes the process of chemiosmosis and the direct result of its occurrence?

a. the choices are hydrogen ions flow from the thylakoid down a concentration gradient through atp synthase channels into the stroma. adp is converted to atp.
b. hydrogen ions flow from the thylakoid down a concentration gradient through atp synthase channels into the stroma. atp is converted to adp.
c. hydrogen ions flow from the stroma down a concentration gradient through atp synthase channels into the thylakoid. adp is converted to atp.
d. hydrogen ions flow from the thylakoid against a concentration gradient through atp synthase channels into the stroma. adp is converted to atp.