[单选题]
Colorimetry was used to dha-2lr-hict 3 etermine the change in color for the axgq9g) 4xy(af if- q4below system at equilibrium as tempera94-x)ag yqxf qiga(4fture increases.
Which statement(s) is/are correct for the following reaction?
I.The forward reaction is exothermic
II.The backward reaction absorbs energy
III.$K_c$ decreases with increasing temperature
A. I only
B. II only
C. I and III only
D. I, II, and III
