The correct answer is option C which is The light reactions harvest ___ <u>energy____</u>, while the carbon reactions produce<u> __carbohydrates_____.</u>
<h3>Explanation:</h3>
The light dependent reaction is the first part of photosynthesis.
In the light energy energy is captured and used to break a water molecule into hydrogen ans oxygen ions with free electrons.
These electrons move into a electron transport chain lean to dark reaction.
Energy from these electrons is used in the dark reaction to produce carbohydrates from the CO2 and H2O and energy from the light reaction.