Justin and Michael Form a Limited Partnership and Start a Car

Justin and Michael form a limited partnership and start a car dealership.Justin is the general partner and Michael is the limited partner.Seven months after the commencement of the business,Pedro makes an investment and wishes to become a general partner.A week later,Michael's mother wishes to join the partnership as a limited partner.Which of the following is true in this scenario?

A) Pedro cannot be admitted as a general partner to the partnership after the business has commenced.
B) Pedro cannot be admitted as a general partner to the partnership as a limited partnership can only have one general partner.
C) Michael's mother cannot be admitted as a limited partner to the partnership as a limited partnership can only have one limited partner.
D) Both Pedro and Michael's mother can choose to be admitted as either general or limited partners to the partnership.