The arc-to-node ratio is given as r = a/n. What does ‘a’ represent in the ratio ?

maximum number of nodes at any level

longest path from the root to a leaf

The arc-to-node ratio is given as r = a/n. What does ‘a’ represent

1.	The arc-to-node ratio is given as r = a/n. What does ‘a’ represent in the ratio ?
A.	maximum number of nodes at any level
B.	longest path from the root to a leaf
C.	number of modules
D.	lines of control
Answer» E.