In addition to all being autotrophs what important feature do all three plants share a)seeds b)flowers c)xylem and phloem d)seeds in ovaries

there's the proffessional site that will you.

yes it is weird but true

some fungi obtain their nutrients from a living host (plant or animal) and are called most biotrophic fungi have fairly narrow host ranges—they are specialized on a limited called rhizomorphs that allow the fungus to grow from one tree to another. ascospores are formed inside a sac-like structure called an ascus. so your answer is a