Which statement explains why the methine proton has a higher chemical shift than the methyl proton?

Carbon has a higher atomic mass than hydrogen, so additional carbon atoms increase the deshielding effect felt by hydrogen.

Hyperconjugation between alkyl groups increases the deshielding effect felt by hydrogen.

Alkyl groups act as electron-donating groups, increasing the deshielding effect felt by hydrogen.

Carbon is more electronegative than hydrogen, so additional carbon atoms increase the deshielding effect felt by hydrogen.