Study the following statements regarding chemiosmotic hypothesis in mitochondria and select the correct ones.
(i) `F_(1)` headpiece contains the site for the synthesis of ATP from `ADP + Pi`.
(ii) `F_(0)` par forms the channel through which protons cross the inner membrane.
(iii) For each ATP produced, `2H^(+)` pass through `F_(0)` from the intermembrane space to the matrix down the electrochemical proton gradient.