What will be the cost of the code if character ci is at depth di and occurs at frequency fi?

What will be the cost of the code if character ci is at depth di and

1.	What will be the cost of the code if character ci is at depth di and occurs at frequency fi?
A.	cifi
B.	âˆ«cifi
C.	âˆ‘fidi
D.	fidi
Answer» D. fidi