Can a principal ratify their agent$$s contract for the purchase of supplies if$,$ when the agent $($with apparent authority$)$ made the contract, the principal was bankrupt?

Yes, because a principal must ratify all contracts made by their agent.

Maybe, but only if the agent was acting in the principal$$s best interest.

No$,$ because the principal did not have capacity to contract when the contract was made.

No$,$ because the contract was not for necessities.

Yes, because the agent had authority to make the contract.