Answer: Pseudopods and chloroplast from red algae
Step-by-step explanation:
A aerobic mixotrophic protist that can perform photosynthesis in deep waters needs chlorophyll. The chlorophyll that is found in red algae has the ability to perform photosynthesis in deep waters.
Green algae can perform photosynthesis upto few meters in the water where the sunlight reaches.So, chloroplast from red alga will be assembled into the organism.
The organsim should also crawl so pseudopods will be assembled into the organism so that the organism can crawl.
Hence, the correct answer is pseudopods and chloroplast from red alga