Theresa and Bobbi Bought a Racecar Together

Theresa and Bobbi bought a racecar together.They agreed to share all expenses and split net profits equally.There was no agreement as to the duration of the partnership.After about a year,Bobbi decided she was tired of the racing business and left the partnership.Bobbi did not violate the partnership agreement.Theresa claims Bobbi's leaving was wrongful.Is Theresa correct?

A) Yes,Bobbi was legally required to secure Theresa's permission before leaving the partnership.
B) Yes,Bobbi had a legal duty to stay in the partnership until Theresa was willing to agree to end the relationship.
C) Yes,Bobbi had a legal duty to stay in the partnership until a new partner could be found.
D) No,in a partnership at will,a partner has the right to leave the partnership at any time.