Possession modification refers to the transfer of the right to the movable property, the two parties also agreed that the transferee to continue to occupy the movable property, the property right from the transfer agreement when the effective effect.
According to the above definition, which of the following options is a possession modification?
A sold all their books to B, in the delivery of this book, A also want to read for a while, and then reached an agreement with B, borrowed the book for 15 days, B said yes