Xylem and phloem are examples for – 

Pteridophytes are known as first vascular and true land plants.

A) Dermal layer

C) Both xylem and phloem

C) Sieve cells

C) Making ropes

B) Sieve tubes, sugars

C) ii ,iii and iv

Phloem fibres are the only dead tissue among this unit.

The correct answer is (B) Leptome

(C) vascular cambium