The Nonvascular Plant That Could Most Easily Spread and Form

The nonvascular plant that could most easily spread and form a larger colony is one with a sporophyte that has a sporangium

A) that is close to the ground and produces sperm with flagella.
B) with a long stalk and a mechanism to throw its spores.
C) that is close to the ground and has a mechanism to throw its spores.
D) with a long stalk and that rots to release spores.
E) with a long stalk and that produces sperm with flagella.