The region in the ocean that marine creatures are capable to do photosynthesis is the photic area, part of the photic area is in the neritic portion where is found the litoral and the sublittoral, being the sublittoral next to the epipelagic and pelagic zones. Therefore, between the alternatives the one that talks about a region where protosynthetic organisms are found is the sublittoral, that's because less light to none can be available in deeper regions of the ocean, and the abyssal layer is the last in the model of ocean distribution layers.