Use the Following Information to Answer the Questions Below

Use the following information to answer the questions below.
You are investigating how chemical reactions occur. You place two reactants together and measure the concentration of product at regular intervals. After a time, the amount of product becomes stable.
-This solution has

A) used up all the reactants, so no more product can be made.
B) used up all the product, so no more reaction is occurring.
C) reached equilibrium, where there is no more formation of the product.
D) reached equilibrium, where the net formation of both product and reactants is neutral.
E) become saturated.