Which one of the following is an effective tissue of growing organs with sufficient elasticity

Which of the following supporting tissues have cells with unequally thickened walls

Lignified cell wall is the characteristic feature of

Given below are two statements :

Statement $I:$ Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.

Statement $II:$ Exarch condition is the most common feature of the root system.

In the light of the above statements, choose the correct answer from the options given below:

Which of the following is true for endarch type of primary xylem?