${\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(7e^{3t}+5t+2)dt$

a$)\frac{7e^{3t}}{3}+\frac{5t^2}{2}+2t+C$

b$)\frac{7e^{3t}}{3}+\frac{t^2}{2}+2+C$

c$)\frac{7e^{3t}}{3}+\frac{t^2}{5}+2t+C$

d$)7e^{16t}+\frac{t^2}{5}+C$

e$)$ None of the above