Don't click on this I am testing... I want the points so.
Answer:
The longest codeword that could possibly be for "n" symbol is n-1 bits.
Explanation:
From the given information:
Suppose we are to consider a set of frequencies
, for which f is a symbol for the length n. Therefore, the longest codeword that could possibly be for "n" symbol is n-1 bits.
However, during the encoding for "n" in conjunction with n-2, then the possibilities for n are; 
We can conclude that the longest codeword that could possibly be for "n" symbol is n-1 bits.
Answer:
Best: 1 or 4
Worst: 3
Explanation:
I'm not sure if number one is imply to ask your coworker to explain it or actually help with the workload. I think 4 would be the right answer because that is what they are there for and you don't want to distract your coworkers.