Final answer:
Pelayo and Elisenda use their new money to build a chicken coop.
Step-by-step explanation:
Pelayo and Elisenda in the story 'A Very Old Man with Enormous Wings' by Gabriel Garcia Marquez do not start a hospital, give the money to the angel, buy a boat, or build a mansion with their new money. Instead, they use their new money to build a chicken coop. This is because they decide to exhibit the angel as a tourist attraction and charge people a fee to see him. The chicken coop serves as a makeshift cage for the angel.