The answer should be C, "instruments for catching shrimp".
El Museo de Sal y del Azúcar translates to "The Salt and Sugar Museum". Also, from this site: https://www.lonelyplanet.com/panama/aguadulce/attractions/museo-de-la-sal-y-azucar/a/poi-sig/1332415/1328599 , we can see that the museum also "documents the history of the sea-salt and sugar industries in Aguadulce. It also displays a number of pre-Columbian artifacts, mostly ceramics and tools found in the cane fields nearby". Nothing to do with shrimp, its all farming
