This answer is
not correct. The chemical shift for a methine group attached to a cyano group
should be 2.9 ppm whereas the downfield multiplet in the spectrum is at 3.4 ppm.
The isopropyl group should also show an upfield doublet and a downfield heptet
and the multiplets in the spectrum are a triplet and a quartet. Think about both
the chemical shift and the group pattern and try again.