The seller in an auction sale e-ployed a by-bidder or popper who bid in behalf of the seller for the purpose of raising the auction price. The seller employed the said by-bidder or pupper without notice to the bidder. What is the possible effect of such non-notication committed by the seller to the perfected contract of sale by auction with the highest bidder? a} It makes the contract of sale rescissible. b} It makes the contract of sale voidable. c} It makes the contract of sale unenforceable. d} It makes the contract of sale void. T3. In which of the following instances where _ion of an immovable property is allowed will the right of legal pre-emption available to a third person? a} Absolute sale of a share in real propertyr by a co-owner b} Dacion en pago of rural lot not exceeding one hectare {1.-} by a farmer to a landlord c} Barter of urban lot which is so small and which was bought mere for speculation d} Any of the above