Which one is wrongly matched?

(a) Gemma cups are the green, multicellular, asexual bud present in the thallus helps in asexual reproduction in Marchantia. 

(b) Polysiphonia is a red algae. They do not possess uniflagellate gametes and sexually reproduces by non-motile gametes.

(c) Chlorella is the unicellular algae and belongs to Chlorophyceae. 

(d) Biflagellate zoospores are the pear-shaped structure with two unequal laterally attached flagella. It helps in asexual reproduction in brown algae. Thus, the correct answer is option B.