group of 2k2 of smksb

hi  can u help me for my science??????

is difficult...................

this is the question:

1.)Which of the following characteristics are used to classify flowering plant?

(1) types of stem

(2) root systems

(3) types of leaf vein

A. 1 & 2 only

B. 1 & 3 only

C. 2 & 3 only

D. 1,2 & 3

---

we are the only one ! :)

---