【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．(A) burrow … a cavernous

B．(B) tangle … a deciduous
C．(C) cozen … a photosynthetic
D．(D) fuse … a subterranean
E．(E) abscond … a perennial