Question

ocean cleanup
the great pacific garbage patch is a giant pile of garbage in the pacific ocean. it contains mainly bits of plastic from bags, water bottles, and cups. each year, thousands of sea animals, birds, and fish die from eating the plastic. a dutch businessman named boyan slat thought of a way to deal with the garbage problem. in 2013, slat started planning the ocean cleanup project. the project uses a long floating fence to gather the garbage. natural water currents and winds help with this collection process, and then ships remove the garbage. ocean cleanup could be a first step to a cleaner pacific.
what is the main, or central, idea of the passage?
the ocean cleanup project uses the oceans natural currents to help collect garbage.
the garbage problem in the pacific led boyan slat to come up with an answer.
the garbage problem in the pacific causes the deaths of thousands of sea animals every year.

Explanation:

El texto comienza describiendo el problema del Gran Residuario Pacífico, luego presenta a Boyan Slat y su proyecto Ocean Cleanup como solución. Las otras opciones son detalles del texto, no el tema central.

Answer:

The garbage problem in the Pacific led Boyan Slat to come up with an answer.