They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. <br> Which of the following terms qualify for the features mentioned above?

Question

$\begin{array}{1 1} (a)\; \text{Xylem tissue} \\ (b)\; \text{Vascular tissue} \\ (c)\; \text{Root hairs} \\ (d)\; \text{Phloem tissue} \end{array}$