Answer:
c. employee but not agent
Explanation:
Agent(legal definition): a person whom act in the name of another yo enter contracts with third parties. Once perform, it is the principal (the party the agent represents) who assumes contracts obligation and benefits.
While an employee has a contract with an employer to provide his workforce. The law will assume someone employee if cannot be determinate otherwise.
In this case Janet works with clients but it do not signs contract with them. Also it is ABC which determinates their works schedules. An Agent has more liberty to search from potential client or from the list of client to negociate on his own and later offer a proposal to the principal.
This is not the case. As it cannot be proveen agent we assume is an employee of ABC