单选题 The root systems of certain plant families, such as that of tulips and crabgrass, ______underground, so that nutrients may be shared along______network.

• (A) burrow … a cavernous
• (B) tangle … a deciduous
• (C) cozen … a photosynthetic
• (D) fuse … a subterranean
• (E) abscond … a perennial