10. The 1H NMR for cinnamaldehyde is given below. Sketch the spectrum, and label the H's in the structure with the letters shown.
a - 9.7 ppm (1H, singlet)
b - 7.7 ppm (1H, doublet)
c - 7.6 ppm (2H, doublet)
d - 7.4 ppm (2H, triplet)
e - 7.3 ppm (1H, triplet)
f - 6.6 ppm (1H, doublet)