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Case Problem 3: Allan owns a parcel of land which he sold to two different buyers (both adjacent landowners} in separate instances, as he was unable to pay the mortgage constituted thereon in favor of Union Bank. The rst sale was in favor of Justine; as terms of payment, Justine will assume the mortgage balance and pay P400. The second sale was in favor of Aiko, for a higher price. Allan withdrew from his agreement with Justine. Thereafter, Aiko also erected a wall around the subject lot with a gate; she also took possession of the lot introduced improvements. Justine registered the sale is his favor on IFeb. 14, 2016 while Aiko also registered on Feb. 29, 2016 Question: 'I. Who has a better right between Justine and Aiko over the subject property? Explain your answer (1 0 points) 2. is there a double sale? Explain. What are the elements of double sale? (\"I 0 points)