Mary, Sally and Sue form the ABC partnership to sell sporting goods. After three years on 2/8/23, Mary decides to leave the partnership . On 2/9/23, Martha joins the partnership. When Martha joined the partnership they had 75,000 in bills due. After four months the partnership business had fallen off so bad Sally, Sue and Martha decided to close the business. At the time of the closure the partnership had 100,000 in bills. Martha's share for the debt would be__________________

A: 0

B: 100,000

C: 25,000

D: 75,000