[单选题]
Which statement is true fo9g; g;72 :5ge w+cj0pn,rfzqj.t,f h oixbcxvr an endotp89i *qc( sccuhermic reaction that results in an increase in entr cpc9* cs8(uqiopy?
A. The reaction is always spontaneous
B. The reaction is never spontaneous
C. The reaction is spontaneous at high temperatures
D. The reaction is spontaneous at low temperatures