Answer:
The answer is C. Kristin, Lindsey, and Mobile
Explanation:
In partnership, there is no distinct difference between the partners(Kristin and Lindsey) and their firm(Mobile Devise). Any contract either of the partners signs on behalf of Mobile Devise is binding on the partners and their firm.
Also in partnership, their liabilities are unlimited. Whatever loss Mobile devise incurs will be their loss unlike in corporation firms.