Evaluate the derivative by using the appropriate product rule, wherer1(t) = (t², t³, t) , r2(t) = (e³t, e²t, eᵗ) 17. d/dt (r1(t) . r2(t) ) 18. d/dt (t⁴r1(t) )
A. 2te³ᵗ + 3t²e²ᵗ + eᵗ
B. 2e³ᵗ + 3te²ᵗ + eᵗ
C. 2te³ᵗ + 3t²e²ᵗ + teᵗ
D. 2e³ᵗ + 3t²e²ᵗ + teᵗ