The great pacific garbage patch is best described as
a. a floating island of garbage in the pacific ocean the size of texas
b. a garbage patch formed of clusters of plastic debris
c. a patch of densely polluted water the size of texas in the pacific ocean
d. the result of oceangoing ship pollution

b. a garbage patch formed of clusters of plastic debris

Explanation:

The Great Pacific Garbage Patch is the largest heap of floating garbage in the world and also the best known. It is located between Hawaii and California and is often described as being "larger than Texas", even though it does not have a single square meter of surface to set foot on.

What is found on this island is not just a large chain of PET bottles floating, but a gigantic area full of floating pieces. It is not visible by satellites and sometimes even by boats. It is estimated that 94% of this waste is composed of microplastic. (pieces smaller than 5 mm).

That's because plastic, in nature, over time, tends to fragment. That is where the danger lies, because the microplastic becomes nanoplastic (less than 0.001 mm) and ends up ingested by plankton. Since these creatures are the basis of the oceanic food chain, plastic ends up in the stomach of countless creatures.