Which one of the following option shows the correct labelling of the parts marked as 1, 2, 3 and 4 in the given figure of a typical dicot root?

1 - Secondary phloem, 2 - Vascular cambium, 3 - Primary phloem, 4 - Primary xylem

1 - Primary phloem, 2 - Vascular cambium, 3 - Secondary phloem, 4 - Primary xylem

1 - Primary phloem, 2 - Primary xylem, 3 - Secondary phloem, 4- Vascular cambium

1 - Secondary phloem, 2 - Primary xylem, 3 - Primary phloem, 4 - Vascular cambium

Which one of the following option shows the correct labelling of the p

1.	Which one of the following option shows the correct labelling of the parts marked as 1, 2, 3 and 4 in the given figure of a typical dicot root?
A.	1 - Primary phloem, 2 - Vascular cambium, 3 - Secondary phloem, 4 - Primary xylem
B.	1 - Secondary phloem, 2 - Vascular cambium, 3 - Primary phloem, 4 - Primary xylem
C.	1 - Primary phloem, 2 - Primary xylem, 3 - Secondary phloem, 4- Vascular cambium
D.	1 - Secondary phloem, 2 - Primary xylem, 3 - Primary phloem, 4 - Vascular cambium
Answer» B. 1 - Secondary phloem, 2 - Vascular cambium, 3 - Primary phloem, 4 - Primary xylem