The mentioned features in the given box are related with which amongst the following organism?

Plant body has holdfast, stipe and frond. Pyriform zoospores with two laterally inserted unequal flagella.

• A

  Laminaria,Fucus

• B

  Volvox,Dictyota

• C

  Polysiphonia,Ulothrix

• D

  Chara,Spirogya