Unless Otherwise Agreed by the Partners,where Are Records of a Partnership

Unless otherwise agreed by the partners,where are records of a partnership to be kept?

A) At the home of the managing partner.
B) At the location of the partnership's principal business office.
C) At the location of the partnership's latest business office.
D) At the location of the partnership's first business office.
E) In a safety deposit box at the bank used by the partnership.