Which member of kingdom protista is the closest relative to the land plants?

Answer: Chlorophytes

Explanation:

Chlorophytes are also know as green algae. They are mostly fresh water organisms with a percentage of them been 90% fresh water organsims and 10% marine organisms. Chlorophytes are unicellular organisms, some have flagella while some do not have flagella. Chlorophytes produce and store starch in the chloroplast. Chlorophytes have Chlorophyll a and b just like plants and they also use cellulose to build their cell wall.