If the tree is not a complete binary tree then what changes can be made for easy access of children of a node in the array ?

no need of any changes continue with 2w and 2w+1, if node is at i

every node stores data saying which of its children exist in the array

keep a seperate table telling children of a node

use another array parallel to the array with tree

If the tree is not a complete binary tree then what changes can be m

1.	If the tree is not a complete binary tree then what changes can be made for easy access of children of a node in the array ?
A.	every node stores data saying which of its children exist in the array
B.	no need of any changes continue with 2w and 2w+1, if node is at i
C.	keep a seperate table telling children of a node
D.	use another array parallel to the array with tree
Answer» B. no need of any changes continue with 2w and 2w+1, if node is at i