question_answer

The order of the differential equation whose general solution is given by \[y=({{c}_{1}}+{{c}_{2}})\,\,\cos \,\,(x+{{c}_{3}})\,\,{{c}_{4}}{{e}^{x+c5}}\] where \[{{c}_{1}},\]\[{{c}_{2}},\]\[{{c}_{3}},\]\[{{c}_{4}},\]\[{{c}_{5}},\] are arbitrary constants, is:

A)  5                                

B)  4

C)  3        

D)  2

E)  None of these