\text { 3. Evaluate the integral: } \int x^{2} \ln x d x \text { A. } \frac{1}{3} x^{3} \ln x-\frac{1}{9} x^{3}+c \text { B. } \frac{1}{3} x^{3} \ln x+\frac{1}{3} x^{3}+c \text { C. } x^{3} \ln x-9 x^{3}+c \text { D. } \frac{1}{2} x^{2} \ln x-\frac{1}{4} x^{2}+c