Final answer:
Owners A, B, and C can redeem their indivisible lot according to the sale agreement and applicable laws, which dictate the timeframe and manner of redemption. The redemption funds may come from the owners themselves or through a loan.
Step-by-step explanation:
In a scenario where owners A, B, and C have sold an indivisible lot with a right to repurchase, the process for redemption is typically dictated by the agreement made at the time of sale or the applicable laws governing such transactions. Normally, owners have the right to redeem their property within a specific period, which should be stated in the contract. However, since the lot was sold separately, the redemption by each owner may be proportional to their ownership interest or may require some form of joint action, dependent on the terms of the sale agreements and the laws of the jurisdiction. Usually, money for redemption would come from either the owners directly or, if a loan is taken to redeem the lot, through the funds acquired from a lender.