A sentence is given with four words marked as (A), (B), (C) and (D). These words may or may not be placed in their places. Four options with different arrangements of these words are given. Mark the option with the correct arrangement as the answer. If there is no change required, mark 'No rearrangement required' as your answer.

Reducing(A) food waste would cut greenhouse gas emissions, hunger (B) the availability of food and thus reduce enhance (C) and save (D) money at a time of global recession.