Cell wall contains cellulose in which of the following protists

Explanation

The correct answer is Oomycetes. Oomycetes are a group of protists known for having cell walls composed of cellulose, similar to plants, which sets them apart from fungi that have chitin in their cell walls. Green algae also have cellulose in their cell walls, but the question specifically highlights protists like Oomycetes. Dinoflagellates possess cellulose, but it is structured as plates rather than forming a typical cell wall, which makes them a less direct answer to the question.