Which one of the following carbocation is most stable

Carbocations are stabilized by resonance, hyper conjugation and inductive effect. In the given list resonance is not possible.Hyper conjugation is the deciding factor. Based on hyper conjugation and inductive effect, stability of carbocations follow the order 3° > 2° > 1°is most stable……it has 8 H.C hydrogens…..it is a tertiary carbocation