[torturedillini]

I can't see any of the hydrogens interacting with the hydrogens of any adjacent carbons. So, I think its 3 singlets, but its not a choice. Help please.

[Squirmy]

The "dipentanoic acid" part makes me think of more than 3 singlets.

Do you mean 3,3-dimethylglutaric acid?

What are your choices?

[torturedillini]

Never mind. There was a none of the above choice. I just didn't notice it. 

Still though, I think there would have been 3 singlets since none of the hydrogens interact with the others. There would be just three because the compound is non-polar, leaving only 3 proton environments. Thanks though.

[polamraju]

no, it may have only two singlets since it di pentanoic acid, those acid protons r in same two protons siglet
and two methyl groups attached to 3 rd carbon gives singlet

[bolo]

Just 3 singlets. One of them is a broad signal from acid protons (11.7-11.8ppm)

  http://www.sigmaaldrich.com/spectra/fnmr/FNMR010024.PDF