Which of the following is true?

I. If a taxpayer buys a personal property from his sister who incurs a capital gain, then the taxpayer$$s basis of the asset is the amount paid for the personal property $+$ capital gain of the sister.

II$.$ If a tax payer sells a personal property to his uncle, the loss incurred by him is not deductible but added to the uncle$$s basis of the property.

I only.

II only.

Both I and II$.$

Neither I nor II$.$