Question $1$

The

$$ of the tree is called the document node or root node.

Select one:

A$.$ Leaf

B$.$ Root

C$.$ child

D$.$ middle level nodes

Question $2$

Which function is basically used to open the file.

Select one:

A$.$ doc$()$

B$.$ open$()$

C$.$ fileopen$()$

D$.$ Fopen$()$