The antherozoids of Funaria are

The correct option is biciliated.

Explanation:
Funaria is a genus of mosses (Bryophyta). Like other bryophytes, Funaria reproduces sexually through the production of male and female gametes.
The male sex organ in Funaria is called the antheridium, which produces male gametes known as antherozoids (or spermatozoids).

To facilitate sexual reproduction, these antherozoids must swim through a film of water to reach the female sex organ (archegonium) and fertilize the egg cell.
To enable swimming, each antherozoid is spirally coiled and possesses exactly two flagella (also historically referred to as cilia) at its anterior end.
Because they have two cilia/flagella, they are morphologically described as biciliated (or biflagellated).